A. N. Al-Baarri, Sri Mulyani, S. B. M. Abduh, M. Hadipernata, R. Z. Kamil, Azka Nadiya Dzakiyalizz, Ghina Ulayya, Shabrina Nur Shaliha, Tri Yuliana, A. A. Mawarid, Widia Pangestika
Fermentation of whey often faces problems with the product clarity due to the milk solids residue from previous cheese making process. The aim of this research was to determine the clarity and the performance of fermented whey precipitation process in the presence of pectin and chitosan as coagulant. Whey was initially pasteurized and added with pectin and chitosan prior to fermentation with mixed starter culture. Fermented whey was stored in refrigerator for 24 hours. Data were obtained using visual analysis by 15 semi-trained panelists. Qualitative scorings were given by (+) or (-) markings from the specified criteria. The data were compiled in a table, showcasing the observed characteristics at the initial and final states of fermentation. The results showed that the highest clarity (+++) was achieved by the fermented whey with the addition of pectin, as well as most stable sediment performance (+++) was also produced by pectin treatment. However, while fermented whey with the addition of pectin exhibited clarity, the level of clarity achieved by fermented whey with the addition of chitosan was superior.
{"title":"Visual Performance of Fermented Whey with the Addition of Pectin and Chitosan During 24 Hours Storage at Refrigerator Temperature","authors":"A. N. Al-Baarri, Sri Mulyani, S. B. M. Abduh, M. Hadipernata, R. Z. Kamil, Azka Nadiya Dzakiyalizz, Ghina Ulayya, Shabrina Nur Shaliha, Tri Yuliana, A. A. Mawarid, Widia Pangestika","doi":"10.17728/jaft.20916","DOIUrl":"https://doi.org/10.17728/jaft.20916","url":null,"abstract":"Fermentation of whey often faces problems with the product clarity due to the milk solids residue from previous cheese making process. The aim of this research was to determine the clarity and the performance of fermented whey precipitation process in the presence of pectin and chitosan as coagulant. Whey was initially pasteurized and added with pectin and chitosan prior to fermentation with mixed starter culture. Fermented whey was stored in refrigerator for 24 hours. Data were obtained using visual analysis by 15 semi-trained panelists. Qualitative scorings were given by (+) or (-) markings from the specified criteria. The data were compiled in a table, showcasing the observed characteristics at the initial and final states of fermentation. The results showed that the highest clarity (+++) was achieved by the fermented whey with the addition of pectin, as well as most stable sediment performance (+++) was also produced by pectin treatment. However, while fermented whey with the addition of pectin exhibited clarity, the level of clarity achieved by fermented whey with the addition of chitosan was superior.","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138981919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Constipation is one of the disorders of Irritable Bowel Syndrome (IBS). Lack of consumption of water and food with fiber are some of the causes of constipation. Treatment for constipation patients can be solved by administering laxatives through drugs (pharmaceuticals) or using polysaccharide parts from plants. There are at least three types of laxatives: bulking agents (having the ability to bulk up), osmotic agents, and stimulants. Polysaccharides can be sourced from whole or some parts of the plants. Each type of plant has different polysaccharide components, and their effects on constipation treatment are also specific. The study aimed to review the mechanisms of polysaccharides from various plants parts and explained the misconception of polysaccharide intake as a laxative agent in treating constipation. This review was based on literature studies related to polysaccharides from plants materials and their effects as laxatives in experimental animals. The review found that these polysaccharides have a positive effect as a laxative or digestive aid. In general, polysaccharides from several plants were extracted and characterized to be used as anti-constipation test materials. These polysaccharides can help increase the amount, weight, and water content of feces (bulk), increase peristalsis, speed up gastric emptying and transit time, as well as restore hormones that work in movement in the digestive tract, and improve the condition of the distal colon tissue. These studies are still limited to using animals as experimental test material in polysaccharides to treat constipation. In addition, it has the potential to be further explored regarding the possibility of clinical trials of polysaccharides in humans as laxatives.
{"title":"The Potential of Polysaccharides from Various Plants as Constipation Treatment","authors":"Yuli Perwita Sari, Dipta Bthari Candraruna","doi":"10.17728/jaft.20621","DOIUrl":"https://doi.org/10.17728/jaft.20621","url":null,"abstract":"Constipation is one of the disorders of Irritable Bowel Syndrome (IBS). Lack of consumption of water and food with fiber are some of the causes of constipation. Treatment for constipation patients can be solved by administering laxatives through drugs (pharmaceuticals) or using polysaccharide parts from plants. There are at least three types of laxatives: bulking agents (having the ability to bulk up), osmotic agents, and stimulants. Polysaccharides can be sourced from whole or some parts of the plants. Each type of plant has different polysaccharide components, and their effects on constipation treatment are also specific. The study aimed to review the mechanisms of polysaccharides from various plants parts and explained the misconception of polysaccharide intake as a laxative agent in treating constipation. This review was based on literature studies related to polysaccharides from plants materials and their effects as laxatives in experimental animals. The review found that these polysaccharides have a positive effect as a laxative or digestive aid. In general, polysaccharides from several plants were extracted and characterized to be used as anti-constipation test materials. These polysaccharides can help increase the amount, weight, and water content of feces (bulk), increase peristalsis, speed up gastric emptying and transit time, as well as restore hormones that work in movement in the digestive tract, and improve the condition of the distal colon tissue. These studies are still limited to using animals as experimental test material in polysaccharides to treat constipation. In addition, it has the potential to be further explored regarding the possibility of clinical trials of polysaccharides in humans as laxatives.","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138604530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Rizqiati, N. Nurwantoro, E. Prayitno, Izza Wildani Muttaqin, Ridho Pangestu
This research aims to determine the best fermentation time to produce optimal buffalo colostrum kefir. Different fermentation times at 12, 24, 36, and 48 hours were used to measure the physicochemical and microbiological characteristics of buffalo colostrum kefir. To produce buffalo colostrum kefir, fermentation process at room temperature (27˚C±1) was used. Viscosity was measured using Ostwald viscometer and Total Dissolved Solid (TDS) was measured digital refractometer. Titratable acidity was analyzed using titration method and pH value was measured using pH meter. Protein content was analyzed using Kjeldahl method and fat content was analyzed using Soxhlet method. The result shows no significant differences (P>0.05) in viscosity which results in a value of 0.92±0.09 to 0.80±0.04 cP. Meanwhile, it shows significant differences (P<0.05) on TDS (24.02±0.80 to 13.30±0.76 ºBrix), titrable acid (1.96±0.10 to 2.53±0.04%), pH value (3.95±0.03 to 3.37±0.04), protein content (14.41±0.94 to 10.57±0.68%), fat content (20.33±0.88 to 6.89±0.90%), total LAB (2.85x106 to 9.57x106 CFU/ml), total yeast (2.16x105 to 7.76x105 CFU/ml), and total microbes (5.15x106 to 5.21x106 CFU/ml). The best treatment was 36 hours of fermentation with 20% grain concentration (w/v) because it produced the highest total Lactic Acid Bacteria (LAB), total yeast, and total microbes so it is potential to be a probiotic drink.
{"title":"The Effect of Fermentation Time on the Physicochemical and Microbiological Qualities of Buffalo Colostrum Kefir","authors":"H. Rizqiati, N. Nurwantoro, E. Prayitno, Izza Wildani Muttaqin, Ridho Pangestu","doi":"10.17728/jaft.20732","DOIUrl":"https://doi.org/10.17728/jaft.20732","url":null,"abstract":"This research aims to determine the best fermentation time to produce optimal buffalo colostrum kefir. Different fermentation times at 12, 24, 36, and 48 hours were used to measure the physicochemical and microbiological characteristics of buffalo colostrum kefir. To produce buffalo colostrum kefir, fermentation process at room temperature (27˚C±1) was used. Viscosity was measured using Ostwald viscometer and Total Dissolved Solid (TDS) was measured digital refractometer. Titratable acidity was analyzed using titration method and pH value was measured using pH meter. Protein content was analyzed using Kjeldahl method and fat content was analyzed using Soxhlet method. The result shows no significant differences (P>0.05) in viscosity which results in a value of 0.92±0.09 to 0.80±0.04 cP. Meanwhile, it shows significant differences (P<0.05) on TDS (24.02±0.80 to 13.30±0.76 ºBrix), titrable acid (1.96±0.10 to 2.53±0.04%), pH value (3.95±0.03 to 3.37±0.04), protein content (14.41±0.94 to 10.57±0.68%), fat content (20.33±0.88 to 6.89±0.90%), total LAB (2.85x106 to 9.57x106 CFU/ml), total yeast (2.16x105 to 7.76x105 CFU/ml), and total microbes (5.15x106 to 5.21x106 CFU/ml). The best treatment was 36 hours of fermentation with 20% grain concentration (w/v) because it produced the highest total Lactic Acid Bacteria (LAB), total yeast, and total microbes so it is potential to be a probiotic drink.","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139226174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research investigates the physical and optical properties of single-layer and layer-by-layer biodegradable films composed of hydroxypropyl methylcellulose (HPMC) and nanochitosan. Initially, HPMC and nanochitosan were formulated as single layers at various concentrations, and subsequently, the selected formulas were utilized to produce a layer-by-layer film. The results indicate that the concentrations of 0.4% w/v HPMC and 0.5% w/v of nanochitosan were successfully assembled into a layer-by-layer biodegradable film. Assessment based on multiple parameters (thickness, moisture content, water vapor transmission rate, color, transparency, and biodegradability) reveals that the deposition of nanochitosan onto HPMC in a layer-by-layer configuration enhances most characteristics of single-layer HPMC films, with the exception of optical properties. Moreover, all samples were degraded within a seven-day observation period.
{"title":"Characterization of Layer-by-Layer Biodegradable Films Based on Hydroxypropyl Methylcellulose-Nanochitosan","authors":"Aulal Muna, Rumpoko Wicaksono, Condro Wibowo","doi":"10.17728/jaft.20868","DOIUrl":"https://doi.org/10.17728/jaft.20868","url":null,"abstract":"This research investigates the physical and optical properties of single-layer and layer-by-layer biodegradable films composed of hydroxypropyl methylcellulose (HPMC) and nanochitosan. Initially, HPMC and nanochitosan were formulated as single layers at various concentrations, and subsequently, the selected formulas were utilized to produce a layer-by-layer film. The results indicate that the concentrations of 0.4% w/v HPMC and 0.5% w/v of nanochitosan were successfully assembled into a layer-by-layer biodegradable film. Assessment based on multiple parameters (thickness, moisture content, water vapor transmission rate, color, transparency, and biodegradability) reveals that the deposition of nanochitosan onto HPMC in a layer-by-layer configuration enhances most characteristics of single-layer HPMC films, with the exception of optical properties. Moreover, all samples were degraded within a seven-day observation period.","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139222798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Human carcinogenic compound formaldehyde (alternative name, formalin) adulteration in food is inappropriate and illegal. However, its simple and cheap procedure in giving desired food preservation effect becomes the factor of its prevalence in Indonesian community. Our current study focuses on the usage of formaldehyde in meatball products which are sold in bulk without refrigeration in traditional market set up. Eighty different packages of meatballs were collected following accidental sampling method from small groceries in Tembalang, Semarang, Central Java in 2019. Samples were characterized for their formaldehyde content (AOAC 931.08), total plate count, moisture and organoleptic properties. Formaldehyde was found in 1 sample at the level of 176.2 ppm. Whereby, it was among only 4 % of samples that met the maximum microbial limit of 5 log CFU/g. The particular sample was characterized by pale color, rather slimy surface, chewy and weak meatball aroma. Note, this characteristic is not unique and is shared by several other samples. Therefore, this study brings an update that formaldehyde adulteration is still prevalent. The adulterated product has hardly distinctive sensorial properties which make self-evaluation difficult, thus exposing consumers to potential food safety risks.
{"title":"Formaldehyde Adulteration in Meatball is Still Prevalent, and it is Hard to Identify Only from its Physical Properties","authors":"Yoga Pratama, Asri Astuti, B. Setiani","doi":"10.17728/jaft.20667","DOIUrl":"https://doi.org/10.17728/jaft.20667","url":null,"abstract":"Human carcinogenic compound formaldehyde (alternative name, formalin) adulteration in food is inappropriate and illegal. However, its simple and cheap procedure in giving desired food preservation effect becomes the factor of its prevalence in Indonesian community. Our current study focuses on the usage of formaldehyde in meatball products which are sold in bulk without refrigeration in traditional market set up. Eighty different packages of meatballs were collected following accidental sampling method from small groceries in Tembalang, Semarang, Central Java in 2019. Samples were characterized for their formaldehyde content (AOAC 931.08), total plate count, moisture and organoleptic properties. Formaldehyde was found in 1 sample at the level of 176.2 ppm. Whereby, it was among only 4 % of samples that met the maximum microbial limit of 5 log CFU/g. The particular sample was characterized by pale color, rather slimy surface, chewy and weak meatball aroma. Note, this characteristic is not unique and is shared by several other samples. Therefore, this study brings an update that formaldehyde adulteration is still prevalent. The adulterated product has hardly distinctive sensorial properties which make self-evaluation difficult, thus exposing consumers to potential food safety risks.","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139276751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this research is to compare the quality of beef rendang in the Darek and Pasisia regions using a standardized recipe. The recipe used is a recipe obtained in the Darek region, called Payakumbuh City, and the Pasisia region, called Pariaman City. This research was quantitative research. Further, the informants of this study were MSMEs in the Darek and Pasisia regions. Questionnaires and experiments were used to gain the data. Further, the data were analyzed using organoleptic analysis, which tested the shape qualities, color, aroma, texture, and taste. The scores were in the range of 1–5. Moreover, after determining the total scores resulting from each item score, the Man Whitney U test was conducted. The results showed that there were different qualities of beef rendang in the Darek and Pasisia regions in terms of shape, color, aroma, texture, and taste.
{"title":"Comparing the Quality of West Sumatra’s Rendang: Rendang Darek vs Rendang Pasisia","authors":"Yuliana Yuliana, Yolanda Intan Sari, Violintikha Harmawan","doi":"10.17728/jaft.17378","DOIUrl":"https://doi.org/10.17728/jaft.17378","url":null,"abstract":"The aim of this research is to compare the quality of beef rendang in the Darek and Pasisia regions using a standardized recipe. The recipe used is a recipe obtained in the Darek region, called Payakumbuh City, and the Pasisia region, called Pariaman City. This research was quantitative research. Further, the informants of this study were MSMEs in the Darek and Pasisia regions. Questionnaires and experiments were used to gain the data. Further, the data were analyzed using organoleptic analysis, which tested the shape qualities, color, aroma, texture, and taste. The scores were in the range of 1–5. Moreover, after determining the total scores resulting from each item score, the Man Whitney U test was conducted. The results showed that there were different qualities of beef rendang in the Darek and Pasisia regions in terms of shape, color, aroma, texture, and taste.","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136369816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Coffee is one of the plantation commodities that is usually processed into beverage products. The most widely cultivated coffee in Indonesia is Robusta coffee. However, Robusta coffee has a lower quality compared to other types of coffee. Fermentation of coffee beans during wet processing can improve coffee quality. The purpose of this study was to determine the best fermentation time for robusta coffee beans in whey kefir so that quality robusta coffee powder was obtained from the water content, total dissolved solids (TDS) and antioxidant activity. This study used a completely randomized design (CRD) with different fermentation time treatments. Parametric data were analysed by ANOVA and followed by DMRT test. Antioxidant activity data were analysed descriptively. Longer fermentation times reduced the total dissolved solids (TDS) of the coffee beans. However, prolonged fermentation can also increase the water content and reduce antioxidant activity. The best treatment was found to be a fermentation time of 18 hours, which resulted in a coffee bean with a good balance of TDS (3.25°Brix), water content (4.67%), and antioxidant activity (16.09 ppm).
{"title":"Water Content, Total Dissolved Solids and Antioxidant Activity of Robusta Coffee Powder Produced by Fermenting Beans in Whey Kefir","authors":"Priyo Bintoro, Anggun Miftahurrahmi, Heni Rizqiati","doi":"10.17728/jaft.16413","DOIUrl":"https://doi.org/10.17728/jaft.16413","url":null,"abstract":"Coffee is one of the plantation commodities that is usually processed into beverage products. The most widely cultivated coffee in Indonesia is Robusta coffee. However, Robusta coffee has a lower quality compared to other types of coffee. Fermentation of coffee beans during wet processing can improve coffee quality. The purpose of this study was to determine the best fermentation time for robusta coffee beans in whey kefir so that quality robusta coffee powder was obtained from the water content, total dissolved solids (TDS) and antioxidant activity. This study used a completely randomized design (CRD) with different fermentation time treatments. Parametric data were analysed by ANOVA and followed by DMRT test. Antioxidant activity data were analysed descriptively. Longer fermentation times reduced the total dissolved solids (TDS) of the coffee beans. However, prolonged fermentation can also increase the water content and reduce antioxidant activity. The best treatment was found to be a fermentation time of 18 hours, which resulted in a coffee bean with a good balance of TDS (3.25°Brix), water content (4.67%), and antioxidant activity (16.09 ppm).","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136369810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The high demand for ready-to-eat (RTE) meat products is attributed to their convenience, safe, and healthy properties. The high nutritional content presence in the RTE meat product promotes the presence and growth of microbial pathogens such as Listeria monocytogenes, Escherichia coli, and Salmonella spp. It is considered to be the post-process contamination that is responsible for the shortening of a product’s shelf life which leads to spoilage or foodborne diseases. The aim of this systematic review is to develop and summarize the use of red ginger and turmeric bioactive compounds as antimicrobial materials to ensure their quality and extend the shelf-life of RTE beef rendang products. Thus, the current studies of coating technology of bioactive compounds and vacuum-sealed packaging are considered to be combined strategies that develop a more robust active packaging system. In order to gain a better understanding of this research field, a literature search was performed using the electronic databases Oxford Journals, Google Scholar, SAGE Journals, ScienceDirect, and Taylor & Francis which describes 26 primary studies. The findings state that the enhanced active packaging system by using bioactive compounds was associated with a significant prolongation of various RTE meat product’s shelf-life of up to 30 days of storage at room temperature. Moreover, the vacuum-sealed packaging in a retort pouch is also considered to improve the food safety environment against microbial contamination
{"title":"Extending The Shelf Life of Ready-To-Eat (RTE) Meat Product by Using Turmeric and Red Ginger as Film Coating of Active Packaging","authors":"Adi Sidharta Budi Dharma","doi":"10.17728/jaft.14149","DOIUrl":"https://doi.org/10.17728/jaft.14149","url":null,"abstract":"The high demand for ready-to-eat (RTE) meat products is attributed to their convenience, safe, and healthy properties. The high nutritional content presence in the RTE meat product promotes the presence and growth of microbial pathogens such as Listeria monocytogenes, Escherichia coli, and Salmonella spp. It is considered to be the post-process contamination that is responsible for the shortening of a product’s shelf life which leads to spoilage or foodborne diseases. The aim of this systematic review is to develop and summarize the use of red ginger and turmeric bioactive compounds as antimicrobial materials to ensure their quality and extend the shelf-life of RTE beef rendang products. Thus, the current studies of coating technology of bioactive compounds and vacuum-sealed packaging are considered to be combined strategies that develop a more robust active packaging system. In order to gain a better understanding of this research field, a literature search was performed using the electronic databases Oxford Journals, Google Scholar, SAGE Journals, ScienceDirect, and Taylor & Francis which describes 26 primary studies. The findings state that the enhanced active packaging system by using bioactive compounds was associated with a significant prolongation of various RTE meat product’s shelf-life of up to 30 days of storage at room temperature. Moreover, the vacuum-sealed packaging in a retort pouch is also considered to improve the food safety environment against microbial contamination","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136369806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Virgin coconut oil (VCO) is a liquid coconut product with a translucent color, a characteristic coconut aroma, and long shelf life. VCO can be made in various ways, including enzymatic, centrifugation, acidification, etc. In this study, the acidification method was used to manufacture VCO whereby the acid used is sourced from passion fruit. This study aims to determine the effect of passion fruit juice addition on the preparation virgin coconut oil. Several variables were employed in the current study, including passion fruit volume of 5 and 8 ml, incubation time of 12 hours and 24 hours, and incubation temperature of 36 and 48 °C in a Factorial Design. The amount of coconut was 660 grams and 660 ml distilled water. The results showed that the production temperature greatly influenced the free fatty acids produced. The best treatment was obtained on VCO with 8 ml passion fruit addition, 12 hours of formation time and 48°C incubation temperature, with 0.12% free fatty acids.
{"title":"The Preparation of Virgin Coconut Oil Using Acid from Passion Fruit Extract at Different Temperature and Incubation Time","authors":"Inggrit Pangestu Ayuningtyas, Wisnu Broto","doi":"10.17728/jaft.14907","DOIUrl":"https://doi.org/10.17728/jaft.14907","url":null,"abstract":"Virgin coconut oil (VCO) is a liquid coconut product with a translucent color, a characteristic coconut aroma, and long shelf life. VCO can be made in various ways, including enzymatic, centrifugation, acidification, etc. In this study, the acidification method was used to manufacture VCO whereby the acid used is sourced from passion fruit. This study aims to determine the effect of passion fruit juice addition on the preparation virgin coconut oil. Several variables were employed in the current study, including passion fruit volume of 5 and 8 ml, incubation time of 12 hours and 24 hours, and incubation temperature of 36 and 48 °C in a Factorial Design. The amount of coconut was 660 grams and 660 ml distilled water. The results showed that the production temperature greatly influenced the free fatty acids produced. The best treatment was obtained on VCO with 8 ml passion fruit addition, 12 hours of formation time and 48°C incubation temperature, with 0.12% free fatty acids.","PeriodicalId":34239,"journal":{"name":"Journal of Applied Food Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136369821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. B. M. Abduh, V. P. Bintoro, V. D. Yunianto, Y. B. Pramono
Digestibility is the most important nutritional functionality of starchy foods. Unfortunately, in Indonesia, this functionality has not been extensively studied due to the relatively challenging methods involving enzymes. This research aims to determine the optimal pH and enzyme ratio of α-amylase (AA) and glucoamylase (GA) for starch hydrolysis tests and apply them to characterize steamed, baked, and fried wheat doughs. For optimization, hydrolysis was carried out at 37 °C with an enzyme-to-substrate ratio (E/S) of 100 mL/g for 120 min. Samples of wheat dough obtained from three major dough producers in Banyumanik, Semarang, Indonesia was then tested for starch hydrolysis, texture, chemical analyses, sensory, and hedonic test. The collected data were analysed using principal component analysis (PCA). Under the determined conditions, the optimal pH and AA/GA ratio were found to be 6.6 and 0.5. Regarding quality of processed doughs, the steamed dough exhibited a cohesive texture, a soft sensory profile with a pleasant aroma, sweet taste, and was most preferred by the panellists. The baked dough was hard in texture, high in ash content, and brown in colour. The fried dough poses high starch hydrolysis, chewy texture, adhesion, solid particles, protein content, and relatively high lipid. The sensory evaluation indicated that the fried dough poses an oily, rancid, foreign aroma, and bitter and salty taste. It can be concluded that at a temperature of 37 °C, an enzyme-to-substrate ratio of 100 mL/g, and a reaction time of 120 min, the optimal starch hydrolysis of processed wheat dough can be achieved at a pH of 6.6 and an AA/GA ratio of 0.5. Furthermore, steaming resulted in a unique property of dough compared to the baked and fried, while the latter two yielded products with similar properties.
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