Zhongguo youzhi, 2023 旨在从不同芝麻油成品中找出共有的挥发性成分,为芝麻油掺伪鉴别提供数据支持。采用顶空固相微萃取-气相色谱-质谱法检测市售的压榨与水代法两种加工工艺生产的共10个品牌一级芝麻油中的挥发性风味物质，分析鉴别两种工艺芝麻油中共有的挥发性成分。结果表明：7个品牌压榨芝麻油中共检出49种风味物质，其中16种为共有成分，主要为酚类、吡嗪类、醇类、酮类、吡咯类、吡啶类等化合物；3个品牌水代法芝麻油中共检出61种风味物质，其中30种为共有成分，主要为酚类、吡嗪类、酮类、吡啶类、吡咯类、醇类、醛类等化合物 ...
周易枚1，吴达2，蒋林惠1，樊青青1，石敏1，胡雨1，任翊1，周楠1 ZHOU Yimei1, WU Da2, JIANG Linhui1, FAN Qingqing1, SHI Min1, HU Yu1，REN Yi1， ZHOU Nan1
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Effect of Different Roasting Strength on Main Volatile Aroma Compounds in Yunnan Coffee Beans(不同烘焙强度对云南咖啡主要挥发香气成分的影响) [PDF]
Shipin kexue jishu xuebao, 2015 The Typica and Catimor coffee beans in Baoshan, Yunnan province were chosen as the experimental materials to measure the concentrations of main volatile aroma compounds under the different roasting strength.
L Wenjia(吕文佳) +3 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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Analysis of Flavor Changes of Instant Brown Rice Porridge Rice during Storage based on Gas Chromatography-Ion Mobility Spectrometry [PDF]
, 2022 In order to explore the quality changes of instant brown rice porridge rice during storage, gas chromatographic ion mobility spectrometry (GC-IMS) and dynamic principal component analysis (PCA) were used to study the changes of the composition and ...
GUAN Lina +7 more
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Accurate Determination of Aldehydes, Ketones and Furans in Non-grape Wines by Headspace-Solid-Phase Microextraction Combined with High-Resolution Gas Chromatography-Orbitrap Mass Spectrometry [PDF]
, 2023 In this study, headspace-solid-phase microextraction extraction combined with gas chromatography-orbitrap-mass spectrometry (HS-SPME-GC-Orbitrap-MS) was used to establish a method for the simultaneous determination of five aldehydes and ketones and four ...
WANG Lei, WANG Chunguang, LIU Yaran, GU Peishan, LIU Jiani, WANG Liwei, ZHU Baoqing
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Composition of Characteristic Flavor Components and Analysis of Flavor Wheel for Shanxi Aged Vinegar(山西老陈醋风味物质组成特征及风味轮分析〖) [PDF]
Shipin kexue jishu xuebao, 2019 The volatile components, organic acids, and amino acids of 6 brands of Shanxi aged vinegar samples were analyzed. A total of 96 volatile components were identified by headspace solid phase micro-extraction-gas chromatography-mass spectrometry. Among them,
ZHENG Yu(郑宇) +7 more
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水热条件下Fe-resin在NaCl溶液中对稻草的水解 [PDF]
, 2018 在水热条件下利用Fe-resin在Na Cl溶液中对稻草(RS)进行水解,以稻草的转化率以及还原糖(TRS)、平台化合物乙酰丙酸(LA)的收率为考察指标,探讨了影响稻草水解的因素,如反应器、稻草的目数、反应温度、反应时间、固液比、固固比、制备Fe-resin的Fe Cl3的浓度和Na Cl的用量。筛选出稻草水解的最佳反应条件为水热反应釜、0.2 g 40~60目稻草、0.15 g 10%的Fe Cl3制备的Fe-resin、反应温度200℃、反应时间5 h、固液比1∶150(g∶m L)、固固比4∶3 ...
杨惠, 贾立山
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Research on Flavor Substances of Cooked Rice by Electromagnetic Induction Heating with Pots Made of Different Materials Based on GC-IMS [PDF]
, 2021 The rice cooked by IH electromagnetic heating do not normally appear to be pinched and appear to be more uniform, while the rice heated by the electric heating element is easier to pinch and paste pot.Based on gas phase ion mobility spectrometry analysis
FU Jie, SUI He-qi, WU Yue
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Gaoya dianqi, 2022 植物绝缘油因其较好的绝缘性能及绿色环保等优势,逐渐成为传统矿物绝缘油替代品研究的热点。太赫兹波段光谱具有独一无二的指纹特征吸收峰,使其成为近年来物质检测热点技术之一。文中利用绝缘油的太赫兹时域光谱快速、准确、稳定的数据采集特性,对植物绝缘油的老化状态进行诊断。首先,利用改进的电磁波传递函数消除了仪器和容器的法布里—珀罗(F-P)效应。然后计算出植物绝缘油的吸收系数、折射率等THz谱参数,分析了植物绝缘油在太赫兹区域的介电性能。最后,与相应老化状态下的糠醛浓度进行对比,结果表明 ...
郭丽 +4 more
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Analysis of Changes in Nutritional Compositions and Key Aroma Compounds in Fried Chicken Wings(炸鸡翅营养组分变化及关键香气成分分析) [PDF]
Shipin kexue jishu xuebaoThe chicken wings coated with flour were fried with palm oil. The changes of fatty acid and amino acid composition before and after frying and the key aroma compounds in the muscles of fried chicken wings were analyzed.
WANG Jia'nan(王嘉楠) +3 more
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