Results 31 to 40 of about 16,199 (224)

酶催化酯化法降低模型油中3-氯丙醇酯 和缩水甘油酯前体物质工艺研究 Reduction of 3-chloropropanol esters and glycidyl esters precursors in model oils by enzyme-catalyzed esterification

open access: yesZhongguo youzhi
旨在解决精炼过程中的高温条件易使油脂产生对人体有害的风险因子3-氯丙醇酯和缩水甘油酯问题,采用脂肪酶催化脂肪酸(油酸)与大豆模型油中的甘油一酯、甘油二酯进行酯化,以降低3-氯丙醇酯和缩水甘油酯的前体物质甘油一酯和甘油二酯的含量。采用单因素试验和响应面试验对酯化反应温度、脂肪酶添加量(以原料总质量计)、底物比(脂肪酸物质的量与将大豆模型油中甘油一酯和甘油二酯完全酯化为甘油三酯所需要脂肪酸总物质的量比)和反应时间等酯化反应条件进行优化。同时,使用酯化前后大豆模型油进行模拟脱臭反应,对比两种脱臭油中3 ...
冯兆寒,周燕霞,孙尚德 FENG Zhaohan, ZHOU Yanxia, SUN Shangde
doaj   +1 more source

Biodegradable Coatings with Essential Oils for Combating Papaya Anthracnose: State of the Art and Perspectives

open access: yesFood Bioengineering, EarlyView.
ABSTRACT Papaya (Carica papaya L.) production and marketability are strongly constrained by postharvest diseases, with anthracnose caused by Colletotrichum spp. representing the most significant threat. Traditional control relies on synthetic fungicides, which, although effective, face challenges such as the development of pathogen resistance ...
Raul Coimbra Miranda   +5 more
wiley   +1 more source

上海市市售食用植物油中氯丙醇酯的 污染状况和暴露评估Contamination status and exposure assessment of chloropropanol esters in edible vegetable oils sold in Shanghai

open access: yesZhongguo youzhi
旨在为食用植物油中氯丙醇酯(MCPDE)的安全监管以及标准制定提供参考,利用2020—2024年上海市市售食用植物油中MCPDE的监测数据,结合居民植物油消费量数据,采用点评估法评估上海市居民经食用植物油摄入3-MCPDE、2-MCPDE的暴露情况。结果表明:270件食用植物油中3-MCPDE和2-MCPDE的总体检出率分别为83.0%和744%,含量均值分别为1 009.5 μg/kg和331.3 μg/kg,最大值分别为18 500 μg/kg和9 500 μg/kg;参照欧盟(EU)2023 ...
宇盛好,李亦奇,彭少杰 YU Shenghao, LI Yiqi, PENG Shaojie
doaj   +1 more source

Chitosan‐Based pH‐Responsive Films and Edible Coatings to Enhance Fruit Shelf‐Life: Impact of Plant Biomolecules and Composition

open access: yesFood Chemistry International, EarlyView.
Chitosan based coatings/films forming solution with the use ofplant extracts and parameters for fruit shelf life analysis. ABSTRACT Fresh fruits are a natural source of various minerals and vitamins, which are essential for human health. However, a rapid rate of respiration, water loss and fast ripening ability result in shorter shelf life and ...
Arun K. Singh
wiley   +1 more source

二氢杨梅素自微乳配方的优化及表征Formulation optimization and characterization of self-microemulsifying system for dihydromyricetin

open access: yesZhongguo youzhi
旨在提高二氢杨梅素(DMY)的生物利用度,制备了二氢杨梅素自微乳(DMY-SMES),通过DMY在辅料(油相、乳化剂和助乳化剂)中的溶解度及各辅料的相容性确定油相、乳化剂和助乳化剂,通过伪三元相图确定三者在自微乳中的比例,在此基础上,以粒径、多分散指数(PDI)和载药量为指标,通过单纯形网格法优化DMY-SMES的配方,并对最佳配方制备的DMY-SMES进行表征。结果表明:以中链甘油三酯(MCT)、吐温80和聚乙二醇400分别为油相、乳化剂和助乳化剂,DMY-SMES的最佳配方为10%MCT、60 ...
常大伟,曹佳怡,姚芊,任娜,王虎玄,孙玉姣,沈文 CHANG Dawei,CAO Jiayi, YAO Qian, REN Na, WANG Huxuan, SUN Yujiao, SHEN Wen
doaj   +1 more source

Aloe vera Tannin Ameliorates Fructose‐Induced Dyslipidaemia and Oxidative Stress in Wistar Rats

open access: yesFood Chemistry International, EarlyView.
Aloe vera tannin (AVT) significantly enhances liver reduced glutathione and superoxide dismutase activities in rats. Fructose consumption creates dyslipidaemia in rats by significantly increasing serum cholesterol and LDL levels. AVT prevented fructose‐induced dyslipidaemia in rats by controlling the lipid profile. AVT did not affect liver, hippocampus
Nathan Isaac Dibal   +12 more
wiley   +1 more source

伊犁河谷红花产业集群化发展策略研究Research on the development strategy of Carthamus tinctorius industrial cluster in the Yili Valley

open access: yesZhongguo youzhi
产业集群是衡量地区经济发展水平的重要指标,红花是伊犁河谷的重要经济作物,推动伊犁河谷红花产业集群化发展是提升区域竞争力、推动当地经济高质量发展的有效途径。旨在为伊犁河谷红花产业集群化发展提供理论支撑,梳理了伊犁河谷红花产业发展优势和现状,深度剖析了伊犁河谷红花产业集群化发展的梗阻,并提出伊犁河谷红花产业集群化发展的实现路径。伊犁河谷红花产业具有悠久的种植历史、广阔的种植规模、良好的生长环境、优异的贸易条件以及牢固的产业基础,已初具集群规模。但伊犁河谷红花产业集群化发展存在红花品种培育技术落后 ...
玛依拉·米吉提,于月恒,赵向豪 Mayila Mijiti, YU Yueheng, ZHAO Xianghao
doaj   +1 more source

Contribution of Free Fatty Acids to Emulsion Building and Stability: Understanding the Mechanism From the Case Study of a Crude Red Palm Oil (Elaeis guineensis)—Based Emulsion Consumed in Africa and Known as Achu Soup/Sauce Jaune/Ncha

open access: yesFood Chemistry International, EarlyView.
In an aqueous alkaline medium, fatty acids (from the hydrolysis of triglycerides or freely present in the oil) are ionised in order to form emulsifiers (carboxylates) which will physically stabilise the prepared emulsion. The higher the free fatty acids content of the oil and alkalinity of the solution, the higher will be the stability of the prepared ...
Ngoualem Kégah Franklin   +3 more
wiley   +1 more source

基于SPE-HILIC-QTOF-MS技术鉴定 巴氏杀菌乳中的磷脂成分Identification of phospholipids in pasteurized milk using SPE-HILIC-QTOF-MS

open access: yesZhongguo youzhi
为了全面认识巴氏杀菌乳的磷脂组成,并为乳磷脂研究提供数据基础,建立了一种固相萃取(SPE)结合亲水作用液相色谱(HILIC)-四极杆飞行时间(QTOF)-质谱(MS)技术鉴定巴氏杀菌乳中磷脂的方法,对脂质提取、SPE以及MS条件进行优化,并对4种哺乳动物(骆驼、山羊、水牛、奶牛)巴氏杀菌乳磷脂组成进行了分析。结果表明:选取4 mL二氯甲烷-甲醇(体积比2∶ 1)溶剂提取1 mL样品中的脂质,通过10 mL正己烷和10 mL异丙醇-二氯甲烷(体积比3∶ 7)的两步淋洗与2 mL甲醇一步洗脱分离磷脂组分 ...
顾竞一,李夏冰,廖光琴,王天彩,王子双,贾琪,张星联,钱永忠,邱静 GU Jingyi, LI Xiabing, LIAO Guangqin, WANG Tiancai, WANG Zishuang, JIA Qi, ZHANG Xinglian, QIAN Yongzhong, QIU Jing
doaj   +1 more source

Nutraceutical Evaluation of Biscuits Formulated From Acha, Chia, and Soycake Flours on Glycemic Control, Lipid Profile, and Histopathological Effects in High‐Fat Diet/Streptozotocin‐Induced Type 2 Diabetic Rats

open access: yesFood Chemistry International, EarlyView.
Acha–chia–soycake biscuits improved glucose tolerance, lipid profile, insulin levels, and pancreatic integrity in HFD–STZ diabetic rats. ACSB1 and ACSB13 outperformed acarbose, showing potent antihyperglycemic, hypolipidemic, and pancreatic‐protective effects.
Oluwafunmilayo Christianah Ogunnowo   +5 more
wiley   +1 more source

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