共查询到18条相似文献,搜索用时 258 毫秒
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酶法提油技术的研究进展 总被引:6,自引:0,他引:6
介绍了酶法提取植物油的多种工艺方法,讨论了有关工艺的影响因素,总结了酶法提油工艺的优点,并对酶法提油技术在鱼油提取中的应用前景进行了介绍. 相似文献
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为了同时利用油料的蛋白与油脂 ,用酶对油料进行预处理 ,再以水提、溶剂浸出、压榨等方法提取油脂 ,并较好的保持油料蛋白的性能 ,该项研究工作在国内外受到普遍重视。本文介绍了酶法提取植物油的各种工艺方法 ,讨论了有关工艺的各项影响因素 ,总结了酶法提油工艺具有的特点 ,对现有文献报道的工艺方法的优缺点进行了评述。从植物油提取工艺应用的要求出发 ,提出了酶法提油需进一步研究的问题。应用生产量大、价格低廉的酶是该方法工业化的基础 ,进一步提高得油率及研究提油后油料蛋白利用的技术 ,是酶法提油工艺发展的根本。 相似文献
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水酶法提油工艺初步研究 总被引:17,自引:0,他引:17
该文介绍水酶法提取植物油多种工艺方法及有关工艺影响因素,总结水酶法提油特点,对水酶法应用发展进行介绍,并就水酶法提油机理进行讨论,且对水酶法常出现乳状液问题,讨论破乳几种可能途径。 相似文献
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水酶法在植物油脂提取中的应用 总被引:9,自引:0,他引:9
介绍了水酶法的作用原理及工艺,总结了水酶法提油特点和在几种主要植物油脂(花生、大豆、芝麻、菜籽、玉米胚芽)提取中的应用及进展,最后介绍了水酶法在植物油提取方面的应用前景. 相似文献
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花生油制取技术研究进展 总被引:2,自引:0,他引:2
对花生油制取技术研究现状进行综述,着重介绍水酶法提油工艺原理及工艺方法.从花生油提取工艺应用要求出发,提出水酶法提油工艺需进一步研究的问题. 相似文献
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核桃油富含不饱和脂肪酸和多种脂肪伴随物,对人体健康十分有益。由于核桃油的营养价值高,如何实现核桃油的高效提取和适度加工越来越受到学者的关注。传统提取核桃油的方法存在蛋白质大量浪费、出油率不高和生物活性物质利用不充分等问题,因此推进新型绿色的核桃油提取方法显得极为重要。水酶法(aqueous enzymatic extraction,AEE)是一种新兴的植物油提取技术,通过充分破碎油料,在生物酶的辅助作用下破乳,实现植物油分离,具有出油率高和环境友好等优点。本文综述了核桃油主要营养成分与脂肪伴随物、核桃油的水酶法提取的关键工艺(预处理方法、酶解过程和破乳等)及存在的问题。同时,本文提出了如何实现核桃油水酶法出油率的提高、核桃油品质提高和实现工业化生产的建议,为水酶法提取核桃油实现工业化生产提供理论和技术支撑。 相似文献
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花生水酶法蛋白质提取及制油研究 总被引:9,自引:3,他引:6
以纤维素酶为主体包含果胶酶的复合酶系处理花生水剂法制油过程中碾磨后的油料,能显著提高花生油收率及花生蛋白得率。经优化实验得出酶处理的最适参数为:加酶量0.3%,酶反应时间4h、pH6.4、温度49℃。 相似文献
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Extraction of fish oil from fish byproducts not only increases the utilization rate of fish resources but also reduces environmental pollution. Extraction methods affect the recovery and quality of fish oil. In this study, fish oil was extracted from yellowfin tuna (Thunnus albacares) heads using enzymatic hydrolysis extraction after single ultra-high pressure pre-treatment (EHSUP). The processing parameters of extraction were optimized with a two-factor repeated experimental design. The results showed that ultra-high pressure pre-treatment of the tuna heads prior to enzymatic hydrolysis was suitable for extracting fish oil and effectively increased the oil yield. The optimum parameters of ultra-high pressure pre-treatment were 200 MPa for 10 min or 100 MPa for 20 min, and the optimum parameters of enzymatic hydrolysis were 1% papain and 55 °C for 60 min. Considering the fatty acid profiles and the oxidation stability, yellowfin tuna oil is a high-quality, docosahexaenoic acid (DHA)-based product with high economic value.Industrial relevanceUltra-high pressure treatment is a novel food processing technology. In general, the main disadvantage of enzymatic hydrolysis extraction is its lower oil recovery than that of solvent extraction. This study investigated the application of ultra-high pressure on fish byproducts prior to enzymatic hydrolysis oil extraction. The results showed that the oil recovery improved by subjecting the tuna heads to ultra-high pressure pre-treatment prior to enzymatic hydrolysis extraction. These results will provide a technical reference for efficiently extracting high-quality fish oil. 相似文献
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Peter Waboi Mwaurah Sunil Kumar Nitin Kumar Arun Kumar Attkan Anil Panghal Vijay Kumar Singh Mukesh Kumar Garg 《Comprehensive Reviews in Food Science and Food Safety》2020,19(1):3-20
Conventional techniques of extracting oil using organic solvents pose health, safety, and environmental concerns. In modern extraction methods, green solvents such as water, ethanol, ethyl acetate, carbon dioxide, ionic liquids, and terpenes are currently gaining prominence. These green solvents present no signs of pollution and remain in liquid form over a temperature range of 0 to 140 °C. Other techniques covered in this review include microwave‐assisted enzymatic extraction, ultrasound‐assisted extraction, supercritical fluid technology, high pressure–assisted extraction, and pulse electric field–assisted extraction. These techniques are considered environmentally friendly because they exhibit less hazardous chemical synthesis, use renewable feedstock, and reduce the chemical load and emissions generated by organic solvents. Aqueous enzymatic extraction is a novel technique that uses enzymes as the medium for extraction of oil. Selection of the enzymes solely depends on the structure of the oilseed and the composition of the cell wall. Studies reveal an enzyme to substrate ratio of 1% to 8%, the temperature of 40 to 55 °C, and a pH of 4 to 8 to be typical for enzymatic extraction of oil from different oilseeds. Microwave‐assisted extraction has proven to impart significant effects on mass transfer and offers high throughput and extraction efficiency. A microwave power of 275 to 1,000 W and a temperature range of 30 to 60 °C are noticed in the different studies. The review presents a comprehensive account of the modern extraction techniques, the parameters responsible for yield and quality, and their industrial applications. Besides, the review highlights the optimized parameters for oil extraction from different oil‐bearing materials. 相似文献
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水酶法是在水代法基础上发展起来的一种现代提取植物油脂新技术。水酶法主要利用生物酶的酶解作用促进植物油脂的游离,与传统压榨法、有机溶剂浸出法及超临界萃取法等相比,其工艺简单,对设备的要求低,无高温处理及有机溶剂残留,油脂品质更好。因此,水酶法是一种"绿色、安全、营养"的提油新技术。本文介绍了水酶法提取植物油脂的技术原理及工艺特点,生物酶的选择与生物酶在水酶法提油中的应用现状,比较了水酶法与其他传统方法制备的植物油脂的品质;并重点讨论了水酶法提取植物油脂技术研究的关键问题,即:水酶法提油过程中乳化液的形成机制及破乳技术;同时,针对水酶法提油技术存在的用酶量大、成本较高及废水处理等问题提出了可能的解决途径,并对其应用前景进行了展望。 相似文献
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木耳多糖提取工艺研究 总被引:5,自引:1,他引:5
本文讨论了黑木耳多糖的提取方法,实验结果表明,采用酶法可显著提高多糖提取率,其最佳提取条件为:料水比1:60,浸提温度80℃,浸提时间2.5h,中性蛋白酶用量650IU/g,作用温度43℃,作用时间1.5h,最适pH值7.4;纤维素酶用量375IU/g,作用温度43℃,作用时间1.5h,最适pH值5.3。木耳多糖提取率为4.38%。 相似文献