Pub Date : 2023-12-14DOI: 10.15376/biores.19.1.973-984
J. Mun, Sung Phil Mun
The dyeing characteristics of hardwood kraft lignin (KL) were investigated on cotton fabrics, assessing its potential as a sustainable and environmentally friendly dye. Dyeability was evaluated by varying the KL concentrations, temperature, and time. An aqueous solution of Na2CO3 (1.0%) as the dye bath and a fabric-to-liquor ratio of 1:50 were used. Cationizing effects were studied using (3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHPTAC), and the mordanting effects of various mordants were also evaluated. Post-mordanting was performed with FeSO4, FeCl2, Fe-lactate (Fe-lac), MgSO4, CuCl2, CuSO4, and Al2(SO4)3. A mordant concentration of 1 mM o.w.f. (0.5 mM for Al2(SO4)3), with a liquor ratio of 1:30, at 60 °C for 30 min were employed. Suitable dyeing conditions were 2.0% o.w.b., 90 °C, and 90 min, resulting in a brownish color of the cotton fabric. The fabrics exhibited a range of light brown to light grayish brown colors and showed lighter colors than the untreated fabrics when mordanted with MgSO4 and Al2(SO4)3. The color difference (ΔE) between cationized and uncationized cotton fabrics was 3.48. From the colorfastness assessment, KL-dyed cotton fabric showed good rubbing and washing fastness for staining, but poor light and washing fastness for fading.
{"title":"Potential of hardwood kraft lignin as a bio-based dye for cotton fabrics","authors":"J. Mun, Sung Phil Mun","doi":"10.15376/biores.19.1.973-984","DOIUrl":"https://doi.org/10.15376/biores.19.1.973-984","url":null,"abstract":"The dyeing characteristics of hardwood kraft lignin (KL) were investigated on cotton fabrics, assessing its potential as a sustainable and environmentally friendly dye. Dyeability was evaluated by varying the KL concentrations, temperature, and time. An aqueous solution of Na2CO3 (1.0%) as the dye bath and a fabric-to-liquor ratio of 1:50 were used. Cationizing effects were studied using (3-chloro-2-hydroxypropyl) trimethylammonium chloride (CHPTAC), and the mordanting effects of various mordants were also evaluated. Post-mordanting was performed with FeSO4, FeCl2, Fe-lactate (Fe-lac), MgSO4, CuCl2, CuSO4, and Al2(SO4)3. A mordant concentration of 1 mM o.w.f. (0.5 mM for Al2(SO4)3), with a liquor ratio of 1:30, at 60 °C for 30 min were employed. Suitable dyeing conditions were 2.0% o.w.b., 90 °C, and 90 min, resulting in a brownish color of the cotton fabric. The fabrics exhibited a range of light brown to light grayish brown colors and showed lighter colors than the untreated fabrics when mordanted with MgSO4 and Al2(SO4)3. The color difference (ΔE) between cationized and uncationized cotton fabrics was 3.48. From the colorfastness assessment, KL-dyed cotton fabric showed good rubbing and washing fastness for staining, but poor light and washing fastness for fading.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"30 11","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138972661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.15376/biores.19.1.985-997
Gökhan Ovalı, Halime Özdamar Ünlü
Modern agricultural production has adopted the principle of maximizing yields in an environmental-friendly, inexpensive, and non-hazardous way. With these characteristics, chitosan has become an increasingly preferred biostimulant in sustainable agriculture. The aim of this study was to determine the effects of chitosan application on yield and quality in lettuce cultivation. For this purpose, Yedikule 5107 lettuce variety was used, and foliar chitosan applications were applied 3 times at 4 different doses of 0, 75, 150, and 300 ppm levels. The total yield, leaf number, leaf width, chlorophyll, total phenolic, and antiradical activity values ranged from 2970 to 3290 kg da-1, from 35.8 to 37.7, from 11.27 to 12.33 cm, from 38.05 to 41.82, from 21.50 to 38.71 mg/100 g, and 46.0% to 54.9%, respectively, and the highest values were obtained in the 300 ppm chitosan application. The highest root collar and plant diameter values were determined at 75 ppm and 150 ppm chitosan doses, respectively. All chitosan applications increased leaf length. Furthermore, chitosan applications were effective in preventing nitrate accumulation. In conclusion, it was determined that the effect of pre-harvest chitosan application was positive, and especially 300 ppm chitosan dose was more effective than other doses.
{"title":"Effects of chitosan application on the yield and quality of lettuce","authors":"Gökhan Ovalı, Halime Özdamar Ünlü","doi":"10.15376/biores.19.1.985-997","DOIUrl":"https://doi.org/10.15376/biores.19.1.985-997","url":null,"abstract":"Modern agricultural production has adopted the principle of maximizing yields in an environmental-friendly, inexpensive, and non-hazardous way. With these characteristics, chitosan has become an increasingly preferred biostimulant in sustainable agriculture. The aim of this study was to determine the effects of chitosan application on yield and quality in lettuce cultivation. For this purpose, Yedikule 5107 lettuce variety was used, and foliar chitosan applications were applied 3 times at 4 different doses of 0, 75, 150, and 300 ppm levels. The total yield, leaf number, leaf width, chlorophyll, total phenolic, and antiradical activity values ranged from 2970 to 3290 kg da-1, from 35.8 to 37.7, from 11.27 to 12.33 cm, from 38.05 to 41.82, from 21.50 to 38.71 mg/100 g, and 46.0% to 54.9%, respectively, and the highest values were obtained in the 300 ppm chitosan application. The highest root collar and plant diameter values were determined at 75 ppm and 150 ppm chitosan doses, respectively. All chitosan applications increased leaf length. Furthermore, chitosan applications were effective in preventing nitrate accumulation. In conclusion, it was determined that the effect of pre-harvest chitosan application was positive, and especially 300 ppm chitosan dose was more effective than other doses.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"2 10","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139001144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-13DOI: 10.15376/biores.19.1.944-954
Zhili Cui, Zhenhua Jiao, Wei Tong
Bamboo has the advantages of a short growth cycle, good mechanical properties, energy savings, and environmental protection. It is regarded as a new building material with great development potential and application prospects. However, current research on the design values of raw bamboo materials is lacking. In this study, the design value of tensile strength of raw bamboo material was determined by a tensile test of the raw bamboo material, and the statistical values of the tensile strength and elastic modulus of the raw bamboo material were obtained. The standard value and resistance uncertainty statistical parameters of the tensile strength of the raw bamboo material were determined. Considering different load combinations and load effect ratios, the relationship between the reliability index and the resistance component coefficient and the optimal resistance partial coefficient under different load combinations were obtained, and the design value of the tensile strength of the raw bamboo material was obtained.
{"title":"Design value of tensile strength of raw bamboo","authors":"Zhili Cui, Zhenhua Jiao, Wei Tong","doi":"10.15376/biores.19.1.944-954","DOIUrl":"https://doi.org/10.15376/biores.19.1.944-954","url":null,"abstract":"Bamboo has the advantages of a short growth cycle, good mechanical properties, energy savings, and environmental protection. It is regarded as a new building material with great development potential and application prospects. However, current research on the design values of raw bamboo materials is lacking. In this study, the design value of tensile strength of raw bamboo material was determined by a tensile test of the raw bamboo material, and the statistical values of the tensile strength and elastic modulus of the raw bamboo material were obtained. The standard value and resistance uncertainty statistical parameters of the tensile strength of the raw bamboo material were determined. Considering different load combinations and load effect ratios, the relationship between the reliability index and the resistance component coefficient and the optimal resistance partial coefficient under different load combinations were obtained, and the design value of the tensile strength of the raw bamboo material was obtained.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"32 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139003960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-13DOI: 10.15376/biores.19.1.925-943
B. Purusatama, Suk Woo Kim, Nam Hun Kim
Quantitative anatomical characteristics and their radial variation in compression (COW), lateral (LAW), and opposite (OPW) woods of Agathis loranthifolia and Pinus merkusii stem woods growing in Indonesia were observed and compared to understand wood quality. The length, diameter, wall thickness, and lumen diameter of tracheids and ray height and numbers were observed using optical microscopy. In both species, COW had the shortest tracheid length, smallest tracheid and lumen diameter, thickest cell wall, and highest ray numbers among the parts, while LAW and OPW showed comparable or variable values in quantitative characteristics. In A. loranthifolia, COW had the highest ray height, whereas, in P. merkusii, it had the lowest uniseriate and fusiform ray heights. No significant difference was observed in ray numbers and heights between LAW and OPW. In both species, the tracheid length and lumen-to-diameter ratio in COW, LAW, and OPW tended to increase from near the pith to near the bark while the wall-to-diameter ratio decreased. The ray heights of all parts increased with increasing distance from the pith, whereas the ray number decreased.
{"title":"A comparative study on quantitative anatomical characteristics of compression, lateral, and opposite woods in Agathis loranthifolia and Pinus merkusii","authors":"B. Purusatama, Suk Woo Kim, Nam Hun Kim","doi":"10.15376/biores.19.1.925-943","DOIUrl":"https://doi.org/10.15376/biores.19.1.925-943","url":null,"abstract":"Quantitative anatomical characteristics and their radial variation in compression (COW), lateral (LAW), and opposite (OPW) woods of Agathis loranthifolia and Pinus merkusii stem woods growing in Indonesia were observed and compared to understand wood quality. The length, diameter, wall thickness, and lumen diameter of tracheids and ray height and numbers were observed using optical microscopy. In both species, COW had the shortest tracheid length, smallest tracheid and lumen diameter, thickest cell wall, and highest ray numbers among the parts, while LAW and OPW showed comparable or variable values in quantitative characteristics. In A. loranthifolia, COW had the highest ray height, whereas, in P. merkusii, it had the lowest uniseriate and fusiform ray heights. No significant difference was observed in ray numbers and heights between LAW and OPW. In both species, the tracheid length and lumen-to-diameter ratio in COW, LAW, and OPW tended to increase from near the pith to near the bark while the wall-to-diameter ratio decreased. The ray heights of all parts increased with increasing distance from the pith, whereas the ray number decreased.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"124 S176","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139006350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-12DOI: 10.15376/biores.19.1.886-897
S. Janceva, A. Andersone, Līga Lauberte, N. Zaharova, G. Telysheva, J. Krasiļņikova, Gints Rieksts
Sea buckthorn (Hippophae rhamnoides L.) twigs, remaining after harvesting and pruning, are an underutilized and little-explored biomass resource. This study investigated the content of serotonin in 10 sea buckthorn cultivars (‘Maria Bruvele’, ‘Botanicheskaya Lubitelskaya’, ‘Tatiana’, ‘Otto’, ‘Leikora’, ‘Duet’, ‘Clara’, ‘Lord’, ‘Eva’, ‘Tarmo’) for the first time, and for further adjustment of the extraction conditions, cultivar ‘Maria Bruvele’ was extracted by water and water/ethanol solution with 20-25, 50, 70, and 96% ethanol at different temperatures. The results showed that 50% water/ethanol solutions are the most suitable for extraction, which makes it possible to increase the yield of serotonin. The 2-year-old twigs and bark from ‘Maria Bruvele’ collected in autumn contained higher serotonin content compared to spring-collected biomass. Serotonin sequential purification allowed the serotonin content in the fraction to increase to 26%/DM. The serotonin-rich fraction showed antimicrobial activity against gram-positive and gram-negative bacteria. In tests with salivary amylase, a serotonin-rich fraction at the amount of 0.1-0.4 mg/mL of saliva, under normal physiological conditions, tended to increase amylase activity, resulting in acceleration of starch degradation to glucose. Thus, the results support further study of the serotonin fraction for the treatment of people having underweight, malnutrition, and malabsorption conditions.
{"title":"A comparative assessment of sea buckthorn (Hippophae rhamnoides L.) pruning waste as a potential source of serotonin","authors":"S. Janceva, A. Andersone, Līga Lauberte, N. Zaharova, G. Telysheva, J. Krasiļņikova, Gints Rieksts","doi":"10.15376/biores.19.1.886-897","DOIUrl":"https://doi.org/10.15376/biores.19.1.886-897","url":null,"abstract":"Sea buckthorn (Hippophae rhamnoides L.) twigs, remaining after harvesting and pruning, are an underutilized and little-explored biomass resource. This study investigated the content of serotonin in 10 sea buckthorn cultivars (‘Maria Bruvele’, ‘Botanicheskaya Lubitelskaya’, ‘Tatiana’, ‘Otto’, ‘Leikora’, ‘Duet’, ‘Clara’, ‘Lord’, ‘Eva’, ‘Tarmo’) for the first time, and for further adjustment of the extraction conditions, cultivar ‘Maria Bruvele’ was extracted by water and water/ethanol solution with 20-25, 50, 70, and 96% ethanol at different temperatures. The results showed that 50% water/ethanol solutions are the most suitable for extraction, which makes it possible to increase the yield of serotonin. The 2-year-old twigs and bark from ‘Maria Bruvele’ collected in autumn contained higher serotonin content compared to spring-collected biomass. Serotonin sequential purification allowed the serotonin content in the fraction to increase to 26%/DM. The serotonin-rich fraction showed antimicrobial activity against gram-positive and gram-negative bacteria. In tests with salivary amylase, a serotonin-rich fraction at the amount of 0.1-0.4 mg/mL of saliva, under normal physiological conditions, tended to increase amylase activity, resulting in acceleration of starch degradation to glucose. Thus, the results support further study of the serotonin fraction for the treatment of people having underweight, malnutrition, and malabsorption conditions.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"19 12","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-12DOI: 10.15376/biores.19.1.858-871
P. Widsten, Mark West, Alankar A. Vaidya, K. Murton
Monosaccharides such as L-arabinose (Ara) and D-tagatose (derived from D-galactose, Gal) are low-calorie sweeteners associated with improved glycaemic and insulin control compared to disaccharides such as sucrose. However, alternative sources and better sugar-sugar separation methods are needed to improve the sustainability and economics of their production. Here, these sugars were obtained from purified and ultrafiltered compression screw pressate (CSP) of thermo-mechanical pulping of softwood (Pinus radiata) and orange peels (OPs). Ba-substituted zeolite X (BaX) molecular sieves showed superior separation performance of Ara from other sugars compared to conventional Ca-form ion exchange resin. To facilitate subsequent separation of sugars, OP hydrolysates were fermented to leave just Ara and Gal, while OP pectin was hydrolysed to generate a Gal-rich mixture. Overall, BaX has good potential for separating Ara from Ara-rich hydrolysates containing several different sugars. It is also suited for separating Ara and another monosaccharide such as Gal or Xyl in the absence of other sugars.
与蔗糖等双糖相比，L-阿拉伯糖（Ara）和 D-塔格糖（源自 D-半乳糖，Gal）等单糖是低热量甜味剂，可改善血糖和胰岛素控制。然而，要改善其生产的可持续性和经济性，需要有替代来源和更好的糖-糖分离方法。在这里，这些糖是从软木（辐射松）和橘子皮（OPs）热机械制浆的压缩螺旋压榨物（CSP）中提纯和超滤得到的。与传统的钙离子交换树脂相比，钡取代的沸石 X（BaX）分子筛对 Ara 和其他糖类的分离效果更佳。为了便于随后分离糖类，OP水解物经发酵后只剩下Ara和Gal，而OP果胶经水解后生成富含Gal的混合物。总之，BaX 在从含有多种不同糖分的富含 Ara 的水解物中分离 Ara 方面具有良好的潜力。它还适用于在没有其他糖的情况下分离 Ara 和另一种单糖（如 Gal 或 Xyl）。
{"title":"Isolation of arabinose and galactose from industrial sidestreams in high yield and purity","authors":"P. Widsten, Mark West, Alankar A. Vaidya, K. Murton","doi":"10.15376/biores.19.1.858-871","DOIUrl":"https://doi.org/10.15376/biores.19.1.858-871","url":null,"abstract":"Monosaccharides such as L-arabinose (Ara) and D-tagatose (derived from D-galactose, Gal) are low-calorie sweeteners associated with improved glycaemic and insulin control compared to disaccharides such as sucrose. However, alternative sources and better sugar-sugar separation methods are needed to improve the sustainability and economics of their production. Here, these sugars were obtained from purified and ultrafiltered compression screw pressate (CSP) of thermo-mechanical pulping of softwood (Pinus radiata) and orange peels (OPs). Ba-substituted zeolite X (BaX) molecular sieves showed superior separation performance of Ara from other sugars compared to conventional Ca-form ion exchange resin. To facilitate subsequent separation of sugars, OP hydrolysates were fermented to leave just Ara and Gal, while OP pectin was hydrolysed to generate a Gal-rich mixture. Overall, BaX has good potential for separating Ara from Ara-rich hydrolysates containing several different sugars. It is also suited for separating Ara and another monosaccharide such as Gal or Xyl in the absence of other sugars.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"17 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-12DOI: 10.15376/biores.19.1.917-924
Bao Ngoc Nguyen, Duy Ngoc Bui, Tien Manh Ha, Trong Tuan Nguyen, Thi Hang Nguyen
Bamboo is recognized as a promising material. It is widely distributed in Vietnam. Bamboo products are quite diverse. However, bamboo materials have been primarily air-dried in open locations. Thus, the bamboo does not achieve the required moisture contents for use in certain products. This can lead to easily being infected by fungi, especially molds that affect the quality of the bamboo’s products. To date, bamboo drying using solar energy integrated with a steam-heated source has not been studied. This study investigated the effect of drying schedules on the drying time and quality of Dendrocalamus barbatus bamboos in “culm” and “strip” forms using solar energy integrated with steam-heated source. Higher temperatures yielded faster drying times, but they also created more drying defects in the bamboo because of the drying gradient being higher. However, depending on the manufacturer’s requirements, the drying schedule No. 1 (40 °C to 60 °C) or No. 2 (50 °C to 70 °C) can be used for drying the bamboo culms. In relation to the bamboo strips, drying schedule No. 3 (60 to 80 °C) is recommended because it was the shortest drying time and had a low defect rate (9%).
{"title":"Effect of drying schedules on the drying time and quality of Dendrocalamus barbatus bamboo using solar energy integrated with steam heated source","authors":"Bao Ngoc Nguyen, Duy Ngoc Bui, Tien Manh Ha, Trong Tuan Nguyen, Thi Hang Nguyen","doi":"10.15376/biores.19.1.917-924","DOIUrl":"https://doi.org/10.15376/biores.19.1.917-924","url":null,"abstract":"Bamboo is recognized as a promising material. It is widely distributed in Vietnam. Bamboo products are quite diverse. However, bamboo materials have been primarily air-dried in open locations. Thus, the bamboo does not achieve the required moisture contents for use in certain products. This can lead to easily being infected by fungi, especially molds that affect the quality of the bamboo’s products. To date, bamboo drying using solar energy integrated with a steam-heated source has not been studied. This study investigated the effect of drying schedules on the drying time and quality of Dendrocalamus barbatus bamboos in “culm” and “strip” forms using solar energy integrated with steam-heated source. Higher temperatures yielded faster drying times, but they also created more drying defects in the bamboo because of the drying gradient being higher. However, depending on the manufacturer’s requirements, the drying schedule No. 1 (40 °C to 60 °C) or No. 2 (50 °C to 70 °C) can be used for drying the bamboo culms. In relation to the bamboo strips, drying schedule No. 3 (60 to 80 °C) is recommended because it was the shortest drying time and had a low defect rate (9%).","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"23 15","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138977062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-12DOI: 10.15376/biores.19.1.898-916
M. Alghonaim, Sulaiman A. Alsalamah, Yahya Ali, Tarek M. Abdelghany
Nanotechnology is a valuable strategy for managing a number of medicinal, agricultural, and environmental concerns. Cocculus pendulus was used for selenium nanoparticles (SeNPs) synthesis to evaluate their usage for microbial inhibition and to enhance plant resistance to heavy metals. Mono-dispersed, spherical shape, and mean diameter (36.19 nm) of SeNPs were documented. More inhibitory potential was associated with SeNPs with inhibition zones of 38±0.3, 18±0.2, 18±0.1, 31±0.2, and 27±0.1 mm than extract of C. pendulus against B. subtilis, S. aureus, E. coli, K. pneumoniae, and C. albicans, respectively. SeNPs had successfully scavenged the free radicals of 2,2-diphenyl-1-picrylhydrazyl (DPPH) with lower IC50 (inhibitory concentration that inhibit 50% of DPPH) value (10.31 µg/mL) than that of C. pendulus extract (55.54 µg/mL). The effect of C. pendulus extract (200 mg/kg soil) alone or in combination with SeNPs (15 mg/kg soil of SeNPs) as a soil drench on shoot, root lengths, plant pigments, lead and cadmium contents of Corchorus olitorius under lead and cadmium stress (5 mg/L) was investigated. The pigments quantity and plant growth were decreased by cadmium and lead poisoning. Application of C. pendulus extracts or SeNPs decreased the Pb and Cd concentrations and improved the growth and metabolites of Corchorus olitorius plants.
{"title":"Green mediator for selenium nanoparticles synthesis with antimicrobial activity and plant biostimulant properties under heavy metal stress","authors":"M. Alghonaim, Sulaiman A. Alsalamah, Yahya Ali, Tarek M. Abdelghany","doi":"10.15376/biores.19.1.898-916","DOIUrl":"https://doi.org/10.15376/biores.19.1.898-916","url":null,"abstract":"Nanotechnology is a valuable strategy for managing a number of medicinal, agricultural, and environmental concerns. Cocculus pendulus was used for selenium nanoparticles (SeNPs) synthesis to evaluate their usage for microbial inhibition and to enhance plant resistance to heavy metals. Mono-dispersed, spherical shape, and mean diameter (36.19 nm) of SeNPs were documented. More inhibitory potential was associated with SeNPs with inhibition zones of 38±0.3, 18±0.2, 18±0.1, 31±0.2, and 27±0.1 mm than extract of C. pendulus against B. subtilis, S. aureus, E. coli, K. pneumoniae, and C. albicans, respectively. SeNPs had successfully scavenged the free radicals of 2,2-diphenyl-1-picrylhydrazyl (DPPH) with lower IC50 (inhibitory concentration that inhibit 50% of DPPH) value (10.31 µg/mL) than that of C. pendulus extract (55.54 µg/mL). The effect of C. pendulus extract (200 mg/kg soil) alone or in combination with SeNPs (15 mg/kg soil of SeNPs) as a soil drench on shoot, root lengths, plant pigments, lead and cadmium contents of Corchorus olitorius under lead and cadmium stress (5 mg/L) was investigated. The pigments quantity and plant growth were decreased by cadmium and lead poisoning. Application of C. pendulus extracts or SeNPs decreased the Pb and Cd concentrations and improved the growth and metabolites of Corchorus olitorius plants.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"53 14","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139006977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-11DOI: 10.15376/biores.19.1.842-857
N. Coman, Mihai Babotă, Ingrid Nădășan, Rideg Lucian, Ruxandra Ștefănescu, Oleg Frumuzachi, A. Mocan, Alexandru Nicolescu, C. Tanase
Polyphenols were extracted from Thuja occidentalis L. bark and characterized in terms of phytochemical composition and biological activity. The optimization process investigated the impacts of extraction duration, ultrasound amplitude, and ethanol concentration on the total phenolic content in the extract. The antioxidant capacity was examined using DPPH and ABTS assays, and anti-enzyme activity against alpha-glucosidase, alpha-amylase, lipase, acetylcholinesterase, and tyrosinase was determined. The experimental model revealed optimal extraction parameters: a hydroethanolic solvent with 44% v:v ethanol, a 15-minute extraction time, and a 40% ultrasound amplitude. These parameters were validated and confirmed by reaching the target Total Phenolic Content (TPC) predicted by MODDE software. The resulting lyophilized extract exhibited a high polyphenolic content (161.84 ± 23.48 mg GAE/g dry extract) and demonstrated strong antioxidant properties. Notably, it showed significant inhibition of alpha-glucosidase and alpha-amylase, suggesting potential antidiabetic effects, though its inhibition of tyrosinase activity was relatively weak. These findings provide a foundation for further investigations to confirm the qualitative and quantitative presence of specific polyphenolic metabolites in the extract and elucidate the mechanisms underlying its bioactive properties.
{"title":"Exploring polyphenols extraction from Thuja occidentalis L. bark: Optimization, phytochemical profiling, and biological evaluation","authors":"N. Coman, Mihai Babotă, Ingrid Nădășan, Rideg Lucian, Ruxandra Ștefănescu, Oleg Frumuzachi, A. Mocan, Alexandru Nicolescu, C. Tanase","doi":"10.15376/biores.19.1.842-857","DOIUrl":"https://doi.org/10.15376/biores.19.1.842-857","url":null,"abstract":"Polyphenols were extracted from Thuja occidentalis L. bark and characterized in terms of phytochemical composition and biological activity. The optimization process investigated the impacts of extraction duration, ultrasound amplitude, and ethanol concentration on the total phenolic content in the extract. The antioxidant capacity was examined using DPPH and ABTS assays, and anti-enzyme activity against alpha-glucosidase, alpha-amylase, lipase, acetylcholinesterase, and tyrosinase was determined. The experimental model revealed optimal extraction parameters: a hydroethanolic solvent with 44% v:v ethanol, a 15-minute extraction time, and a 40% ultrasound amplitude. These parameters were validated and confirmed by reaching the target Total Phenolic Content (TPC) predicted by MODDE software. The resulting lyophilized extract exhibited a high polyphenolic content (161.84 ± 23.48 mg GAE/g dry extract) and demonstrated strong antioxidant properties. Notably, it showed significant inhibition of alpha-glucosidase and alpha-amylase, suggesting potential antidiabetic effects, though its inhibition of tyrosinase activity was relatively weak. These findings provide a foundation for further investigations to confirm the qualitative and quantitative presence of specific polyphenolic metabolites in the extract and elucidate the mechanisms underlying its bioactive properties.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"1 6","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138979882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-11DOI: 10.15376/biores.19.1.872-885
K. T. Hizal
This study identified the wood species and evaluated the weathering and biological degradation of historical timber from a traditional Turkish house in Konuralp, Türkiye. The wood material was obtained from the floorboards, window frames, cabinets, cripple studs, ceiling boards, and joists. The species were identified as Pinus spp. for the cabinet, window frame, and cripple stud, Abies spp. for the floorboards, Populus spp. for the ceiling boards, and Quercus spp. for the joist. The macroscopic observation revealed multiple types of degradation caused by weathering, fungi, and insect attacks. The cripple studs made of pine and the floorboards made of fir had become completely unusable due to insect damage. Relatively less biological damage was observed on the cabinet made of pine wood and the ceiling boards made of poplar wood.
{"title":"Species and deterioration of woods used in a traditional Turkish house","authors":"K. T. Hizal","doi":"10.15376/biores.19.1.872-885","DOIUrl":"https://doi.org/10.15376/biores.19.1.872-885","url":null,"abstract":"This study identified the wood species and evaluated the weathering and biological degradation of historical timber from a traditional Turkish house in Konuralp, Türkiye. The wood material was obtained from the floorboards, window frames, cabinets, cripple studs, ceiling boards, and joists. The species were identified as Pinus spp. for the cabinet, window frame, and cripple stud, Abies spp. for the floorboards, Populus spp. for the ceiling boards, and Quercus spp. for the joist. The macroscopic observation revealed multiple types of degradation caused by weathering, fungi, and insect attacks. The cripple studs made of pine and the floorboards made of fir had become completely unusable due to insect damage. Relatively less biological damage was observed on the cabinet made of pine wood and the ceiling boards made of poplar wood.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"20 3-4","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138980301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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