Currently, there is a growing demand to replace the compounds in a given product that are of a petroleum origin with renewable resources. One of these compounds, called fatty acid (FA), is the main component of vegetable oils. FA composition is not only responsible for the physicochemical properties of plant oils, but it also determines their uses. For example, since time immemorial, products containing lipids have been used for lighting and heating purposes. They are also excellent lubricants and possess drying properties important molecules for painting, and wood preservation. In terms of nutrition, they have a high-energy content, are part of our daily health requirements, and are used for animal feed. We present here some lipids of interest, the plants that produce them naturally with high yield, the enzymes responsible for their synthesis when known, and their possible uses, as well as resources and ways that could allow the lipids of interest to be produced in quantity in different hosts.
{"title":"A comparison of natural and induced diversity in plant oils","authors":"T. Chardot","doi":"10.1051/ocl/2022027","DOIUrl":"https://doi.org/10.1051/ocl/2022027","url":null,"abstract":"Currently, there is a growing demand to replace the compounds in a given product that are of a petroleum origin with renewable resources. One of these compounds, called fatty acid (FA), is the main component of vegetable oils. FA composition is not only responsible for the physicochemical properties of plant oils, but it also determines their uses. For example, since time immemorial, products containing lipids have been used for lighting and heating purposes. They are also excellent lubricants and possess drying properties important molecules for painting, and wood preservation. In terms of nutrition, they have a high-energy content, are part of our daily health requirements, and are used for animal feed. We present here some lipids of interest, the plants that produce them naturally with high yield, the enzymes responsible for their synthesis when known, and their possible uses, as well as resources and ways that could allow the lipids of interest to be produced in quantity in different hosts.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74184932","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}
Z. Petkova, G. Antova, M. Angelova-Romova, Ilinka Todorova, M. Stoyanova, A. Stoyanova
Nowadays, the requirements of new sources of natural food components are constantly expanding worldwide. On one hand, the constituents derived from the common agriculture plants satisfy the needs of the body to function properly. On the other hand, the price of producing ordinary foods is gradually increasing. For that reason, it is necessary to find a cheaper alternative industrial crops, such as a specific variety of lupin (Lupinus angustifolius L. cultivar “Boregine”). The chemical and lipid composition of lupin seeds as well as the physicochemical characteristics of the oil were examined. The seeds are rich in proteins and carbohydrates, mainly starch, but have low oil content. Sucrose was the main soluble sugar and the major amino acids were phenylalanine, arginine, tyrosine and serine. Linoleic and oleic acids were predominate in the oil; β-sitosterol and γ-tocopherol were the main components in the sterol and tocopherol fractions, respectively. Phosphatidylinositol and phosphatidylcholine represented more than 50% of all phospholipids and oleic acid was in the highest amount in all phospholipid classes. All physicochemical characteristics of lupin seed oil were in agreement with the requirements for edible oils and its oxidative stability at 100 °C and an air flow rate of 20 L/h was extremely high (more than 100 h). Lupin seeds have high nutritional value and their oil depicts to be stable, which makes them a possible source of high quality lipids with long shelf life.
{"title":"Lupinus angustifolius L. cultivar “Boregine” from South of Bulgaria: a source of nutrients and natural biologically active components","authors":"Z. Petkova, G. Antova, M. Angelova-Romova, Ilinka Todorova, M. Stoyanova, A. Stoyanova","doi":"10.1051/ocl/2022003","DOIUrl":"https://doi.org/10.1051/ocl/2022003","url":null,"abstract":"Nowadays, the requirements of new sources of natural food components are constantly expanding worldwide. On one hand, the constituents derived from the common agriculture plants satisfy the needs of the body to function properly. On the other hand, the price of producing ordinary foods is gradually increasing. For that reason, it is necessary to find a cheaper alternative industrial crops, such as a specific variety of lupin (Lupinus angustifolius L. cultivar “Boregine”). The chemical and lipid composition of lupin seeds as well as the physicochemical characteristics of the oil were examined. The seeds are rich in proteins and carbohydrates, mainly starch, but have low oil content. Sucrose was the main soluble sugar and the major amino acids were phenylalanine, arginine, tyrosine and serine. Linoleic and oleic acids were predominate in the oil; β-sitosterol and γ-tocopherol were the main components in the sterol and tocopherol fractions, respectively. Phosphatidylinositol and phosphatidylcholine represented more than 50% of all phospholipids and oleic acid was in the highest amount in all phospholipid classes. All physicochemical characteristics of lupin seed oil were in agreement with the requirements for edible oils and its oxidative stability at 100 °C and an air flow rate of 20 L/h was extremely high (more than 100 h). Lupin seeds have high nutritional value and their oil depicts to be stable, which makes them a possible source of high quality lipids with long shelf life.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85580390","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}
Edible insects constitute a sustainable and alternative source of nutrients: they have potential to become a valuable protein source for addressing animal and human markets addressing part of the global food demand. After protein, the second largest fraction of the insect is constituted of lipids. Lipids can represent 10 to 15% of the insect in dry matter, making this fraction one of the major co-products of insect industry. The composition of the insect fat may change in terms of quantity and composition of fatty acids profile. Insect species, stage of growth, extraction technologies are some parameters that can impact the fat quality. Many applications of insect fat are naturally focusing on animal nutrition to replace vegetal or fish oil in poultry or aqua feed. Health or human food applications are also envisaged to replace vegetal oil or butter in processed foods, and some technical and sensory tests are reported in this review. However, these last applications, concerning food are submitted to the regulation and especially to the Novel Food EU regulation. For these reasons, it is important to have more data about safety and innocuity of insect fats: a first study is dealing with this aspect, showing an absence of toxicity. Finally, some energy or surfactant applications can also be considered.
{"title":"New lipid sources in the insect industry, regulatory aspects and applications","authors":"Bénédicte Lorrette, L. Sánchez","doi":"10.1051/ocl/2022017","DOIUrl":"https://doi.org/10.1051/ocl/2022017","url":null,"abstract":"Edible insects constitute a sustainable and alternative source of nutrients: they have potential to become a valuable protein source for addressing animal and human markets addressing part of the global food demand. After protein, the second largest fraction of the insect is constituted of lipids. Lipids can represent 10 to 15% of the insect in dry matter, making this fraction one of the major co-products of insect industry. The composition of the insect fat may change in terms of quantity and composition of fatty acids profile. Insect species, stage of growth, extraction technologies are some parameters that can impact the fat quality. Many applications of insect fat are naturally focusing on animal nutrition to replace vegetal or fish oil in poultry or aqua feed. Health or human food applications are also envisaged to replace vegetal oil or butter in processed foods, and some technical and sensory tests are reported in this review. However, these last applications, concerning food are submitted to the regulation and especially to the Novel Food EU regulation. For these reasons, it is important to have more data about safety and innocuity of insect fats: a first study is dealing with this aspect, showing an absence of toxicity. Finally, some energy or surfactant applications can also be considered.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81461760","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}
Soybean (Glycine max (L.) Merr.) may contribute to the agro-ecological transition of cropping systems in Europe, but its productivity is severely affected by summer drought. The crop is mainly grown in southern and continental parts of Europe, whereby increasing drought and heat waves are expected in the near future. Agronomic strategies, such as early sowing, require cultivars with enhanced early plant growth traits under suboptimal conditions. Moreover, efficient water uptake by root delays dehydration and promotes drought avoidance. In general, changes in root morphology and root architecture are important pathways for plant adaptation to water stress conditions. This paper reviews the cultivar differences in soybean for root morphological and architectural traits especially during early growth stage. Previous works reported cultivar differences for root traits in soybean but they did not deal with cultivars commonly grown in Europe on which little information is available to date. Genotypic differences in available early-stage root traits can be used as a framework to design soybean ideotypes less vulnerable to drought. To this aim, high-throughput phenotyping supported by digital methods and crop modelling offer new avenues for the exploration of target root traits involved in drought avoidance.
{"title":"Genotypic differences in root traits to design drought-avoiding soybean ideotypes","authors":"Elana Dayoub, J. Lamichhane, P. Debaeke, P. Maury","doi":"10.1051/ocl/2022021","DOIUrl":"https://doi.org/10.1051/ocl/2022021","url":null,"abstract":"Soybean (Glycine max (L.) Merr.) may contribute to the agro-ecological transition of cropping systems in Europe, but its productivity is severely affected by summer drought. The crop is mainly grown in southern and continental parts of Europe, whereby increasing drought and heat waves are expected in the near future. Agronomic strategies, such as early sowing, require cultivars with enhanced early plant growth traits under suboptimal conditions. Moreover, efficient water uptake by root delays dehydration and promotes drought avoidance. In general, changes in root morphology and root architecture are important pathways for plant adaptation to water stress conditions. This paper reviews the cultivar differences in soybean for root morphological and architectural traits especially during early growth stage. Previous works reported cultivar differences for root traits in soybean but they did not deal with cultivars commonly grown in Europe on which little information is available to date. Genotypic differences in available early-stage root traits can be used as a framework to design soybean ideotypes less vulnerable to drought. To this aim, high-throughput phenotyping supported by digital methods and crop modelling offer new avenues for the exploration of target root traits involved in drought avoidance.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76356995","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}
Anthony Sehl, Emma Caderby, Sammy Bouhouda, F. Rébeillé, H. Griffiths, Sonia Da Rocha Gomes
The health benefits of a diet rich in omega-3 long chain polyunsaturated fatty acids (n-3 LC-PUFA) no longer need to be proven. However, while health authorities attempt to increase the consumption of the n-3 LC-PUFAs eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), data from the latest intake surveys demonstrate that EPA and DHA consumption is still too low. A push towards greater sustainability, and a rise in vegetarianism are pushing manufacturers to move from traditional fish oils towards alternative sources. Microalgae oils provide a source of n-3 LC-PUFA with a lower environmental impact and are produced using processes that limit damage to the oils. This review aims to report on oleaginous microalgae strains available for n-3 LC-PUFA production, the processes used for their growth and the extraction and refining processes for their oils. It also addresses the challenges inherent in these products and their fabrication, and some of the novel characteristics of microalgal oils, including their very high n-3 LC-PUFA content and the chemical structure of their triglycerides, that lead to exciting opportunities in their use as functional food ingredients.
{"title":"How do algae oils change the omega-3 polyunsaturated fatty acids market?","authors":"Anthony Sehl, Emma Caderby, Sammy Bouhouda, F. Rébeillé, H. Griffiths, Sonia Da Rocha Gomes","doi":"10.1051/ocl/2022018","DOIUrl":"https://doi.org/10.1051/ocl/2022018","url":null,"abstract":"The health benefits of a diet rich in omega-3 long chain polyunsaturated fatty acids (n-3 LC-PUFA) no longer need to be proven. However, while health authorities attempt to increase the consumption of the n-3 LC-PUFAs eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), data from the latest intake surveys demonstrate that EPA and DHA consumption is still too low. A push towards greater sustainability, and a rise in vegetarianism are pushing manufacturers to move from traditional fish oils towards alternative sources. Microalgae oils provide a source of n-3 LC-PUFA with a lower environmental impact and are produced using processes that limit damage to the oils. This review aims to report on oleaginous microalgae strains available for n-3 LC-PUFA production, the processes used for their growth and the extraction and refining processes for their oils. It also addresses the challenges inherent in these products and their fabrication, and some of the novel characteristics of microalgal oils, including their very high n-3 LC-PUFA content and the chemical structure of their triglycerides, that lead to exciting opportunities in their use as functional food ingredients.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"121 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88002089","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}
Z. Dezashibi, S. Azadmard‐Damirchi, Z. Piravi-Vanak
Co-extraction of pomegranate seed oil (PSO) with green tea leaves (GTL) (0 [control sample], 2.5, 5, 7.5, and 10% w/w) was conducted by cold-press to evaluate the extracted oil quality during storage. The extraction yield was similar to the control sample up to 5% w/w of GTL. Total phenol and chlorophyll content were increased in the extracted oils with increasing the level of GTL. The acid and peroxide values were increased during the storage and the lowest values were achieved for PSO with 5% GTL. Rancimat analysis also confirmed the PV results, therefore using 5% GTL led to providing the highest induction period (11.5 h). Consequently, using 5% of GTL during the extraction of PSO by cold-press could result in an appropriate extraction yield and also present higher oxidation stability. This method does not need any antioxidant extraction from herbs and is very cost-effective, time-efficient, and uses no chemicals.
{"title":"Effect of co-extraction of pomegranate seed oil with green tea leaves on the extraction yield and quality of extracted oil","authors":"Z. Dezashibi, S. Azadmard‐Damirchi, Z. Piravi-Vanak","doi":"10.1051/ocl/2022020","DOIUrl":"https://doi.org/10.1051/ocl/2022020","url":null,"abstract":"Co-extraction of pomegranate seed oil (PSO) with green tea leaves (GTL) (0 [control sample], 2.5, 5, 7.5, and 10% w/w) was conducted by cold-press to evaluate the extracted oil quality during storage. The extraction yield was similar to the control sample up to 5% w/w of GTL. Total phenol and chlorophyll content were increased in the extracted oils with increasing the level of GTL. The acid and peroxide values were increased during the storage and the lowest values were achieved for PSO with 5% GTL. Rancimat analysis also confirmed the PV results, therefore using 5% GTL led to providing the highest induction period (11.5 h). Consequently, using 5% of GTL during the extraction of PSO by cold-press could result in an appropriate extraction yield and also present higher oxidation stability. This method does not need any antioxidant extraction from herbs and is very cost-effective, time-efficient, and uses no chemicals.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88862160","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}
M. Tekaya, H. Chehab, A. Guesmi, Faisal K. Algethami, N. Ben Hamadi, M. Hammami, B. Mechri
A high-performance liquid chromatography (HPLC) method endowed with a gradient elution and a UV detection system was established and validated for the determination of phenolic acids, phenolic alcohols, hydroxycinnamic acid derivatives, flavonoids, secoiridoids and lignans during olive (Olea europaea L.) fruit development (green, purple and black olives). Within the test range, the calibration curves exposed a good linear regression (R 2>0.9995). Detection limits ranged between 0.63 and 13.43 mg/L for the detected phenolic compounds. The presented method yielded satisfactory repeatability in terms of retention times and average concentrations of phenolic compounds (RSD < 0.3%). Verbascoside was established as the major phenolic compound in black olives. Oleuropein was established as the dominating phenolic compound in green olives, and its level decreased during maturation. Additionally, this research is the first to experimentally evidence that the flavone luteolin-7-rutinoside is the predominant flavonoid glucoside in black olives, showing the most significant variation with fruit development. The above results validate the method for an easy and fast determination of different classes of phenolic compounds present in olive fruits.
{"title":"Study of phenolic composition of olive fruits: validation of a simple and fast HPLC-UV method","authors":"M. Tekaya, H. Chehab, A. Guesmi, Faisal K. Algethami, N. Ben Hamadi, M. Hammami, B. Mechri","doi":"10.1051/ocl/2022028","DOIUrl":"https://doi.org/10.1051/ocl/2022028","url":null,"abstract":"A high-performance liquid chromatography (HPLC) method endowed with a gradient elution and a UV detection system was established and validated for the determination of phenolic acids, phenolic alcohols, hydroxycinnamic acid derivatives, flavonoids, secoiridoids and lignans during olive (Olea europaea L.) fruit development (green, purple and black olives). Within the test range, the calibration curves exposed a good linear regression (R 2>0.9995). Detection limits ranged between 0.63 and 13.43 mg/L for the detected phenolic compounds. The presented method yielded satisfactory repeatability in terms of retention times and average concentrations of phenolic compounds (RSD < 0.3%). Verbascoside was established as the major phenolic compound in black olives. Oleuropein was established as the dominating phenolic compound in green olives, and its level decreased during maturation. Additionally, this research is the first to experimentally evidence that the flavone luteolin-7-rutinoside is the predominant flavonoid glucoside in black olives, showing the most significant variation with fruit development. The above results validate the method for an easy and fast determination of different classes of phenolic compounds present in olive fruits.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82808296","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}
Mohamed Kouighat, Meriem El Harfi, H. Hanine, Mohamed El Fechtali, A. Nabloussi
Sesame (Sesamum indicum L.) is one of the most recommended oil crops due to its nutritional and medicinal properties. It is a tropical and subtropical plant; however, it is also cultivated in arid and semi-arid regions, including Morocco. Nevertheless, the sesame crop in this country faces many constraints and challenges that restrict its production potential. The objective of this study is to present the situation of sesame production in Morocco during the last twenty years by describing and discussing the seed production, the harvested area, the value of imports, and the most important challenges. Also, some relevant strategies and measures to counteract these constraints and, thus, improve sesame production have been proposed and discussed. To make a fair diagnosis, a survey was carried out among 33 sesame producers in the Tadla area, in addition to the national and international databases that were consulted. The results showed that sesame area and production dropped markedly between 2000 and 2020. As a result, the import quantities and values have been significantly and gradually increased during the same period. The observed decline in both the area and the production may be due to several constraints including recurrent drought, restricted supply in irrigation water, poor cultural practices, low-yielding cultivars, and pests and diseases. Therefore, there is an urgent need for scientific research in terms of breeding to develop and release high-performing and adapted varieties and crop management to find and adopt the best cultural practices. Besides, sesame producers should organize themselves in associations or cooperatives to ensure an added value of their production and improve their profit margin and income. All these actions and measures would be able to promote and develop the sesame sector in Morocco to meet and satisfy the high domestic and global demand for this precious and valuable seed.
{"title":"Moroccan sesame: Current situation, challenges, and recommended actions for its development","authors":"Mohamed Kouighat, Meriem El Harfi, H. Hanine, Mohamed El Fechtali, A. Nabloussi","doi":"10.1051/ocl/2022022","DOIUrl":"https://doi.org/10.1051/ocl/2022022","url":null,"abstract":"Sesame (Sesamum indicum L.) is one of the most recommended oil crops due to its nutritional and medicinal properties. It is a tropical and subtropical plant; however, it is also cultivated in arid and semi-arid regions, including Morocco. Nevertheless, the sesame crop in this country faces many constraints and challenges that restrict its production potential. The objective of this study is to present the situation of sesame production in Morocco during the last twenty years by describing and discussing the seed production, the harvested area, the value of imports, and the most important challenges. Also, some relevant strategies and measures to counteract these constraints and, thus, improve sesame production have been proposed and discussed. To make a fair diagnosis, a survey was carried out among 33 sesame producers in the Tadla area, in addition to the national and international databases that were consulted. The results showed that sesame area and production dropped markedly between 2000 and 2020. As a result, the import quantities and values have been significantly and gradually increased during the same period. The observed decline in both the area and the production may be due to several constraints including recurrent drought, restricted supply in irrigation water, poor cultural practices, low-yielding cultivars, and pests and diseases. Therefore, there is an urgent need for scientific research in terms of breeding to develop and release high-performing and adapted varieties and crop management to find and adopt the best cultural practices. Besides, sesame producers should organize themselves in associations or cooperatives to ensure an added value of their production and improve their profit margin and income. All these actions and measures would be able to promote and develop the sesame sector in Morocco to meet and satisfy the high domestic and global demand for this precious and valuable seed.","PeriodicalId":19440,"journal":{"name":"OCL","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85857398","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}
Diego Alejandro Hernández Rendón, E. Daza, Yeiner Arturo Acosta Hernández, Mauricio Mosquera-Montoya
Oil palm interspecific hybrids Elaeis oleífera × Elaeis guineensis (O × G) are grown across approximately 68,000 hectares in Colombia. To address the limited natural pollination capacity of O × G hybrids and the difficulties associated with assisted pollination regarding the timing of E. guineensis pollen application, the Colombian Oil Palm Research Center (Cenipalma) conducted studies on induction of parthenocarpic fruits. Cenipalma confirmed that application of 1,200 ppm of 1-naphthaleneacetic acid (NAA) at different phenological stages enabled the formation of parthenocarpic fruits. This technological advance was termed artificial pollination. This paper presents the results from a research study aimed at assessing the labor productivity for two methods of NAA application (NAA in solid mixture and NAA in liquid suspension). From a methodological standpoint, a time and motion study was conducted to assess labor productivity for each NAA application method, with time data collected using the software Cybertracker on a mobile platform (smartphone). The results indicated that a worker can cover 3.9 hectares in a working day and sprinkle 303 inflorescences in a working day when applying NAA in solid mixture. On the other hand, when applying NAA in liquid suspension, the worker can cover 3.2 hectares and sprinkle 315 inflorescences (i.e. in a working day).
油棕的种间杂交品种Elaeis oleífera × Elaeis guineensis (O × G)在哥伦比亚种植面积约为68,000公顷。哥伦比亚油棕研究中心(Cenipalma)为解决O × G杂交品种自然授粉能力有限的问题，以及几内亚棕花粉施药时机方面的辅助授粉困难，开展了单性果实诱导研究。Cenipalma证实，在不同物候期施用1200ppm的1-萘乙酸(NAA)可促进单性果果的形成。这项技术进步被称为人工授粉。本文介绍了两种NAA应用方法(NAA固体混合和NAA液体悬浮液)的劳动生产率评价研究结果。从方法学的角度来看，研究人员进行了时间和动作研究，以评估每种NAA应用方法的劳动生产率，并在移动平台(智能手机)上使用Cybertracker软件收集了时间数据。结果表明，一个工人在一个工作日内可以覆盖3.9公顷，在一个工作日内可以撒下303朵花。另一方面，在液体悬浮液中施用NAA时，工人可以覆盖3.2公顷，喷洒315朵花序(即一个工作日)。
{"title":"Assessing the labor productivity of two methods of artificial pollination in oil palm crops from Colombia","authors":"Diego Alejandro Hernández Rendón, E. Daza, Yeiner Arturo Acosta Hernández, Mauricio Mosquera-Montoya","doi":"10.1051/ocl/2022006","DOIUrl":"https://doi.org/10.1051/ocl/2022006","url":null,"abstract":"Oil palm interspecific hybrids Elaeis oleífera × Elaeis guineensis (O × G) are grown across approximately 68,000 hectares in Colombia. To address the limited natural pollination capacity of O × G hybrids and the difficulties associated with assisted pollination regarding the timing of E. guineensis pollen application, the Colombian Oil Palm Research Center (Cenipalma) conducted studies on induction of parthenocarpic fruits. Cenipalma confirmed that application of 1,200 ppm of 1-naphthaleneacetic acid (NAA) at different phenological stages enabled the formation of parthenocarpic fruits. This technological advance was termed artificial pollination. This paper presents the results from a research study aimed at assessing the labor productivity for two methods of NAA application (NAA in solid mixture and NAA in liquid suspension). From a methodological standpoint, a time and motion study was conducted to assess labor productivity for each NAA application method, with time data collected using the software Cybertracker on a mobile platform (smartphone). The results indicated that a worker can cover 3.9 hectares in a working day and sprinkle 303 inflorescences in a working day when applying NAA in solid mixture. On the other hand, when applying NAA in liquid suspension, the worker can cover 3.2 hectares and sprinkle 315 inflorescences (i.e. in a working day).","PeriodicalId":19440,"journal":{"name":"OCL","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89130459","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. Danthine, S. Closset, J. Maes, Steven Mascrez, C. Blecker, G. Purcaro, V. Gibon
This study aims to evaluate the potential of applying enzymatic interesterification (EIE) to produce new healthy zero-trans high vitaminic content margarine fats, based on rapeseed oil (RO) only, with a specific focus on process-induced contaminants: the dialkylketones. Three blends made of RO and fully hydrogenated rapeseed oil (60:40, 70:30 and 80:20 wt:wt%) were considered. Compositional and melting properties, polymorphic behavior, appearance and textural characteristics were compared before and after interesterification. Interesterification improved both functional and textural characteristics. Enzymatic interesterification produced fats which presented similar triacylglycerol profile and physicochemical properties as the chemically interesterified one (CIE), however, preserving more tocopherols and without forming dialkylketones (process-induced contaminants). On the contrary, it was shown that after CIE, dialkylketones were formed: C18:1–C18:1 and C18:1–C18 chain-lengths being the major ones, and interestingly, their amount increased with the unsaturation in the blends. Our results indicate the great potential of enzymatic interesterification to produce new healthy fats entirely based on rapeseed oil. This study provides valuable information for the food industry, showing EIE as cutting-edge sustainable technology.
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