Results 41 to 50 of about 16,199 (224)
Zhongguo youzhi摘要：旨在为提高油莎豆的贮藏稳定性，采用微波对油莎豆进行预处理，研究了冷藏（4 ℃）和常温（20~31 ℃）贮藏条件下油莎豆水分含量、脂肪酶活性及其油脂酸值和过氧化值的变化规律，同时测定了油莎豆油的脂肪酸组成和脂质伴随物含量。结果表明：在常温贮藏或冷藏过程中，油莎豆的水分含量、脂肪酶活性及油莎豆油的酸值、过氧化值均呈一定增长趋势，微波预处理显著降低了油莎豆的水分含量、脂肪酶活性和油莎豆油的酸值；常温贮藏和冷藏120 d后，704 W 处理270 s制备的油莎豆油的酸值（KOH）小于4 mg/100 ...
邓淑君1,2,3，郝琴1,2,3，万楚筠2,3，郭婷婷2,3，魏春磊2,3 DENG Shujun1,2,3，HAO Qin1,2,3，WAN Chuyun2,3， GUO Tingting2,3, WEI Chunlei2,3
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Flavour and Fragrance Journal, EarlyView.The first comparative analysis of Magnolia scents reveals that M. wufengensis is characterised by a high aldehyde content, exhibiting a fresh, sweet, and fruity fragrance profile. Furthermore, freeze‐drying preserves 6.7 times more 2‐nonenal compared to shade‐drying, highlighting its superior efficacy in retaining key volatile compounds.
Xiaole Wang +7 more
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Zhongguo youzhi为促进野生核桃的综合开发利用，以云南省临沧市野生核桃为原料，测定了核桃仁粗脂肪、粗蛋白质含量，核桃仁粕氨基酸组成、矿质元素含量，以及核桃油的生育酚含量、总脂肪酸及sn-2位脂肪酸组成，并分析了其热特性。结果表明：野生核桃仁中粗脂肪含量为44.04%，粗蛋白质含量为2163%；核桃仁粕中7种人体必需氨基酸占氨基酸总量的31.47%，9种药用氨基酸占氨基酸总量的70.97%；核桃仁粕中含有丰富的矿质元素，属于高钾低钠食品，微量元素中Mn元素含量最高，为144.8 μg/g，重金属元素未检出 ...
韦承珊1,2，毕佳俊1,2，李云仙1,2，刘祥义1,2，徐娟1,2 WEI Chengshan1,2，BI Jiajun1,2，LI Yunxian1,2，LIU Xiangyi1,2，XU Juan1,2
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Food Biomacromolecules, EarlyView.Abstract The influence of pretreatment of rice bran oil using fluorescent and sunlight radiations on its colour and their influence on its chemical composition and oxidative stability were assessed. Rice bran oil was stored under sunlight, fluorescent light and ambient conditions for 60 days. Oil samples were collected every 15 days for analysis.
Sab Sharon Mbape +3 more
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植物甾醇提取纯化方法研究进展Research progress on extraction and purification methods of phytosterols
Zhongguo youzhi为了提高植物甾醇的提取效率和纯度，对植物甾醇的结构和来源，提取纯化方法及其辅助技术的原理、种类、特点以及应用等进行归纳分析，并对今后的研究方向提出了建议。植物甾醇来源广泛，但传统的植物甾醇提取纯化方法如溶剂萃取法等存在收率低、纯度低以及影响环境等缺点，具有一定局限性。新型的植物甾醇提取纯化方法如超临界CO2法等具有操作简单、无毒、产品纯度高等优点，是一种环保高效的提取方法。辅助提取技术如酶、微波、超声波和磁场等能够优化对植物甾醇的提取纯化工艺，提高提取纯化效率。通过将传统方法进行改良、与新型方法结合 ...
王媛媛，马改琴，李跃凡，李琪，高媛，于修烛WANG Yuanyuan, MA Gaiqin, LI Yuefan, LI Qi, GAO Yuan, YU Xiuzhu
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Food Biomacromolecules, EarlyView.Abstract Honeybees (Apis mellifera L.) are an important class of insects that are the most beneficial in terms of economy. Beeswax is the second most important bee products after honey. Its commercial importance is due to its antimicrobial, antioxidant, anti‐inflammatory and antiseptic as well as regenerative properties.
Rajshri Naveen, Manickam Loganathan
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Zhongguo youzhi旨在产出高质量棉籽蛋白并对脱酚液中的棉子糖进行回收利用，对棉籽蛋白脱酚工艺及棉子糖的制备工艺进行了研究。结果表明：控制棉仁粉末度在21.44%左右，脱酚溶剂甲醇体积分数80%~90%，料液比在1∶ 0.56~1∶ 0.63之间，不仅可以达到最佳的棉籽蛋白脱酚效果，还可稳定采出棉子糖含量在3%以上的脱酚液；控制一次浓缩挥发性组分在85%左右，絮凝时pH为8～9，脱色时pH为5～6，二次浓缩挥发性组分为45%左右，所提取的棉子糖粗品中棉子糖含量可达到85%，重结晶后棉子糖含量可达到98%以上。In ...
刘君，王如南，邵会，韩文杰，张军 LIU Jun，WANG Runan，SHAO Hui，HAN Wenjie，ZHANG Jun
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Future Postharvest and Food, EarlyView.The review critically evaluated and compared the selected superfruit phytochemistry, their bioactive composition and the key health benefits majorly emphasizing the antioxidant potential. It has highlighted the translational challenges in formulating functional foods by addressing the issues related to delivery system, bioavailability mechanism and the
Sharath Kumar Nagaraja +3 more
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熬制条件对牛油基火锅油品质的影响Effect of decoction conditions on the quality of tallow-based hotpot oil
Zhongguo youzhi旨在为复合风味牛油基火锅油产品的开发提供依据，以牛油和巴沙硬脂为原料，在不同温度（80、100、120 ℃）下熬制不同时间（20、40、60 min）制备牛油基火锅油，采用电子鼻和顶空固相微萃取气相色谱-质谱联用技术分析不同熬制条件下牛油基火锅油的挥发性风味物质组成与含量，以及其理化性质和感官品质，考察熬制条件对牛油基火锅油品质的影响。结果表明：火锅油中的挥发性风味物质主要由萜烯类、烃类、醇类、酯类、醛类、酮类及其他类化合物组成，挥发性风味物质总数量在79~109之间，关键挥发性风味物质有10种 ...
邓煜1,2，李涵润1，钟金锋1，刘雄1，袁田1，覃小丽1,2 DENG Yu1,2, LI Hanrun1, ZHONG Jinfeng1, LIU Xiong1, YUAN Tian1, QIN Xiaoli1,2
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Canned Foods: Evolution, Benefits, and Health Implications of Modern Packaging
Food Safety and Health, EarlyView.This graphical abstract presents a concise visual overview of canned food technology, highlighting its historical evolution, key benefits, and associated health risks. It integrates timelines, icons, and summary points to clearly communicate advancements in preservation, consumer advantages, and potential safety concerns in a single schematic ...
Shaswati Rout +3 more
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