Results 11 to 20 of about 5,162 (89)
Analysis of Volatile Components in Fresh Hawthorn by SDE-GC-MS(SDE-GC-MS分析鲜山楂果肉中的挥发性成分) [PDF]
Shipin kexue jishu xuebao, 2015 The organic volatile components in fresh hawthorn were studied using simultaneous distillation extraction and gas chromatography-mass spectrometry (SDE-GC-MS).
GAO Tingting(高婷婷) +4 more
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Gongye shui chuli, 2011 采用微波与Fenton试剂联合处理糠醛废水, 分别考察了废水初始浓度、双氧水用量、微波辐射时间、微波辐射功率和pH等因素对糠醛废水处理效果的影响。结果表明, 在微波辐射功率为480W、微波辐射时间为4min、体积分数为6%的双氧水用量为1.5mL、FeSO4用量为0.07g、pH=3的条件下, 糠醛废水COD的去除率达到90.9%, 此研究为处理该种废水提供了一种清洁、简便的净化方法。
于大伟 +4 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Photocatalytic H2 evolution coupled with biomass upgrading offers a sustainable route for clean energy conversion and high‐value chemical synthesis. Herein, an in situ grown S‐scheme MnS/MnB‐MBene heterojunction (denoted as SMx) was fabricated via alkaline etching of Mn2AlB2 followed by controlled sulfurization.
Pei Li +7 more
wiley +1 more source
Zhongguo youzhi, 2023 为探究不同工艺对油茶籽油风味的影响，采用气相色谱-离子迁移谱（GC-IMS）技术对湿提和热榨油茶籽油风味物质进行分析。结果表明：湿提和热榨油茶籽油中均鉴定出32种风味物质；醛类是湿提和热榨油茶籽油主要的风味成分，其在湿提和热榨油茶籽油含量分别为62.62%和70.52%；湿提和热榨油茶籽油风味成分差异主要在于醛类和醇类物质含量，湿提油茶籽油的醇类和酯类物质含量高于热榨油茶籽油，糠醛含量（1.96%）远低于热榨茶籽油（11.18%）；通过主成分分析和样品间相似度分析比较，两种工艺油茶籽油整体风味差异明显 ...
夏纯凤1，吴苏喜1,2,3，王彦心1，张科红2，袁成华3 XIA Chunfeng1, WU Suxi1,2,3, WANG Yanxin1, ZHANG Kehong2, YUAN Chenghua3
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
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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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Gongye shui chuli, 2007 对PACT工艺处理糠醛废水进行了研究,结果表明,在反应温度为23℃、pH为6.8～7.0的实验条件下,经水力停留时间24h,该工艺对COD的去除率为88.3%,PACT工艺对糠醛废水pH变化的缓冲能力较强。采用粒径<0.42mm的活性炭,控制水力停留时间为18h,处理效果较好。
杨春维, 李金英, 郑艳芹
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, 2010 以SiO2-Al2O3、γ-Al2O3为载体采用浸渍法制备了不同负载量的镍基催化剂,以XRD、H2-TPR、NH3-TPD与低温N2吸附等技术对催化剂特性进行了表征,并进行了水相催化糠醛加氢脱氧实验研究以制备以C5为主要成分的生物汽油。重点考察了催化剂的镍负载量、载体种类及反应温度对糠醛转化率、目标产物C5选择性的影响,并对催化剂的重复利用性能和糠醛水相加氢脱氧反应机理进行了探讨。结果表明,Ni/SiO2-Al2O3催化性能明显优于Ni/γ-Al2O3。在140℃、氢冷压3.0 MPa的优化反应条件下 ...
王铁军 +5 more
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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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Gongye shui chuli, 2009 糠醛废水属于难处理的高浓度有机废水,工程采用微电解—中和—混凝—UASB—兼性厌氧—生物接触氧化—生物活性炭工艺处理糠醛废水。工业实验表明,出水达到《辽宁省污水与废气排放标准》(DB21—60—1989)二级排放标准。电石渣的应用起到了以废治废的目的,具有一定的经济意义,该工艺对其他废水的处理有一定的借鉴作用。
段海霞, 刘炯天
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