Structure and Properties of Gallic Acid Epoxy Modified Gelatin [PDF]
, 2023 In this study, gallic acid (GA) was used to synthesize the gallic acid epoxy (GAE) for the chemical modification of gelatin. The chemical structure, hydration properties, thermal stability, and mechanical properties of GAE modified gelatin (GAEG) were ...
Ganhui HUANG +4 more
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菜籽油加工过程中香兰素含量的变化研究 Change of vanillin content during rapeseed oil processing
Zhongguo youzhi旨在明确菜籽油中香兰素来源以及不同加工工艺菜籽油中香兰素的本底水平，为市场监管提供理论支撑。首先对比分析了不同种植地油菜秸秆、果荚及油菜籽中香兰素含量，然后考察压榨法制取菜籽油各工序香兰素含量变化，并进一步分析炒籽温度和炒籽时间对油菜籽中香兰素含量的影响，最后测定不同工艺成品菜籽油中香兰素的含量。结果表明：不同种植地油菜秸秆、果荚及油菜籽中香兰素含量差异较大，从油菜不同生长部位来看，油菜秸秆中香兰素含量最高，其次是果荚，油菜籽中香兰素含量最低；在压榨法制取菜籽油过程中，蒸炒后油菜籽中香兰素含量大幅增加 ...
王澍1,2，杨永1,2，高盼2,3，陈哲1,2，王公辉4，李海梅4，汪雄军4，何东平2,3，于雷4 WANG Shu1,2, YANG Yong1,2, GAO Pan2,3, CHEN Zhe1,2, WANG Gonghui4, LI Haimei4, WANG Xiongjun4, HE Dongping2,3, YU Lei4
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International Research Progress on Encapsulation and Release of Flavor Substances by Starch-based Wall Materials [PDF]
, 2021 The entrapment and release of flavor substances is a frontier topic in the field of food flavor research. This paper mainly reviews the research progress on the entrapment and release of flavor substances based on starch-based wall materials.
FENG Tao +3 more
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Research Progress on Biotransformation of Agri-food Lignocellulosic Biomass Waste into Vanillin [PDF]
Vanillin is one of the most in-demand spices in the world, which is widely used in various industries such as food, medicinal, and chemical industries. The process of extracting natural vanillin from plants is cumbersome with a limited yield.
ZHOU Man, LI Chenglin, LIN Kailin, CHEN Luyi, WANG Ziyi, YANG Xinying, JIANG Haiyan, ZHANG Xiaoxue, HUANG Xiaoqi, ZHOU Cunshan
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Identification of Key Aroma Compounds in Fig Extract through Sensomics Approach [PDF]
In this study, headspace solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) and gas chromatography-olfactory (GC-O) were applied to identify and analyze the volatile aroma compounds of the ethanol extract of figs.
WANG Xinhui, HE Feng, LI Ruili, WANG Hanshu, LIANG Miao, ZHANG Yihan, PAN Wenliang, ZHANG Junsong
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UPLC测定食用油中的3种香兰素类物质含量Determination of three vanillin compounds in edible oil by UPLC
Zhongguo youzhi为解决现有检测方法存在前处理净化不完全、不彻底的情况，建立了超高效液相色谱（UPLC）测定食用油中香兰素、甲基香兰素和乙基香兰素含量的分析方法。用乙腈提取食用油中目标物，以乙腈饱和的正己烷萃取净化，冷冻分层后，再经Oasis PRiME HLB固相萃取柱净化，采用C18色谱柱分离，以0.5%甲酸水溶液-乙腈为流动相进行UPLC测定，外标法定量。结果表明：3种香兰素类物质在0.1~100.0 mg/L范围内线性关系良好，相关系数大于0.999，检出限均为0.03 mg/kg，定量限均为0.1 mg/kg ...
孟繁磊，张慧，范宏，谭莉，宋志峰 MENG Fanlei, ZHANG Hui, FAN Hong, TAN Li, SONG Zhifeng
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The Synthesis of Advantame [PDF]
, 2017 Advantame是一种新型的高效二肽甜味剂，它的甜度是蔗糖的20，000倍，并且具有甜味纯正、不含热量、性质稳定等优点。Advantame现已通过美国食品药品监督管理局（FDA）食品安全认证，是甜味剂研究的又一重要成果。目前，Advantame的合成过程一般分为两步，先采用异香兰素和乙醛通过羟醛缩合反应生成中间体3-羟基-4-甲氧基肉桂醛，再将中间体与阿斯巴甜通过还原胺化反应生成Advantame。由于异香兰素和乙醛的羟醛缩合反应需要在低温下进行，而且耗时长、收率低 ...
刘怡雪
core
Separation of vanillin and o-vanillin by three-zone asynchronous simulated moving bed [PDF]
, 2017 模拟移动床（SimulatedMovingBed，简称SMB）技术作为一种新兴的制备色谱分离技术，经过数十年的发展，已经广泛应用于石油化工、生物医药和食品工业。近几年来，其理论研究主要集中在模型求解、操作方式改进以及操作参数优化设计等方面。本文针对三区带异步切换模拟移动床技术分离邻香兰素与香兰素进行了以下研究工作。 首先，应用一类四阶的紧致差分算法求解SMB模型方程，通过计算实例验证了该算法在空间方向的四阶精度。另外，考察了模型参数对色谱流出曲线的影响。最后 ...
陈金良
core
Establishment of UPLC-Q-TOF-MS Fingerprints and Antioxidant Spectroscopic Relationship of Ethanol-eluting Sites of Tetrastigma hemsleyanum Macroporous Resin [PDF]
Objective: To study the spectrum-effect relationship between the extracts of Tetrastigma hemsleyanum and its antioxidant activity, and to clarify the quality markers of its antioxidant activity.
Guoqiang CAI +5 more
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Strategies of Prior-Fractionation for the Graded Utilization of Lignocellulose [PDF]
, 2017 木质生物质是地球上最丰富的一类生物质资源,主要由碳水化合物高分子(纤维素、半纤维素)和芳族聚合物(木质素)组成。木质纤维组分的清洁高效分离,是实; 现多元化、高值化生物精炼的重要基础。本文首先讨论了基于分级利用的组分分离技术与基于制备纤维素乙醇的预处理技术的不同之处;其次,梳理归纳了五种木质; 纤维组分优先分级分离策略:纤维素优先分离,木质素优先分离,半纤维素优先分离,木质素和半纤维素优先分离以及纤维素和半纤维素优先分离;再次,基于半纤; 维素优先分离策略,对国内相关的产业化应用进行了评述;最后 ...
唐兴 +5 more
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