Results 21 to 30 of about 1,496 (159)

我国油料产业形势分析与发展对策 [PDF]

open access: yes, 2023
油料安全事关国计民生,保障油料有效供给是我国必须坚守的国家粮食安全底线。站在全球视角,对2011/2012—2020/2021年度我国油料供需形势、生产形势及市场形势进行分析,明确我国油料产业在生产、加工、贸易等方面面临的挑战,并针对性地提出了统一科学谋划与增强政策扶持精准度相结合,强化科技支撑与耕地资源保护相结合,提高农户油料种植收益与增强自然灾害抵御能力相结合,坚持大宗油料品牌建设与特色油料资源开发相结合,稳定当前农业合作伙伴关系与扩宽油料进口来源相结合 ...
严茂林1,葛玮玮2,张翔1,黄韵宁1,张志丹1,张洋2 " YAN Maolin1, GE Weiwei2, ZHANG Xiang1, HUANG Yunning1, ZHANG Zhidan1, ZHANG Yang2"
core   +2 more sources

Overreliance on Orthographic Similarity in L2‐Japanese Conceptual Processing by L1‐Chinese Learners

open access: yesInternational Journal of Applied Linguistics, Volume 36, Issue 2, Page 1807-1820, May 2026.
ABSTRACT Orthographic and phonological similarities between first (L1) and second (L2) languages can facilitate L2 processing. Particularly, L1‐Chinese learners of L2‐Japanese can benefit from the shared morphosyllabic Chinese characters (Japanese kanji/Chinese hanzi) because of their similar orthographies.
Xuehan Zhao, Kexin Xiong, Sachiko Kiyama
wiley   +1 more source

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

open access: yesZhongguo 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
doaj   +1 more source

The Preliminary Study of Function of Arabidopsis Gene SAV7 [PDF]

open access: yes, 2016
光和温度都是保障植物正常生长的极其重要的因素。植物为适应各种复杂多变的外界环境,已经进化出一套能够感应光和温度变化,并由此激发一系列的适应性反应机制。当植物种植过于密集而造成遮荫时,喜阳植物拟南芥会感应到光强以及红光:远红光的比例(R:FR)的下降,表现叶柄和下胚轴的快速生长,叶片偏下性生长的增强,以及叶绿素含量降低等变化,称为避荫综合症(ShadeAvoidanceSyndrome,SAS),使其逃离遮荫环境来竞争有限的光资源。同样,当环境温度升高时候(29℃),拟南芥也能感受到这样细微的变化 ...
梁伟秋
core  

Research Progress on the Effect of Oil Preparation Technology on Lipid Concomitants in Rapeseed Oil [PDF]

open access: yes, 2023
The major route of rapeseed utilization is by the preparation of rapeseed oil. Different oil preparation technologies have a significant influence on lipid concomitants (including polyphenols, phytosterols, tocopherols, and β-carotene) in rapeseed oil ...
MA Xuan, WANG Weijun, ZHENG Chang, LIU Changsheng
core   +1 more source

"热榨菜籽油加工过程中三甲胺及其前体物质的 分布和变化规律""Distribution and change rules of trimethylamine and its precursors during hot-pressed rapeseed oil processing"

open access: yesZhongguo youzhi
旨在为热榨菜籽油的质量控制和生产工艺调控提供理论参考,以市场上3种基因型(甘蓝型、白菜型、芥菜型)共6个不同品种的油菜籽为原料,探究了热榨菜籽油加工过程中三甲胺及其前体物质(芥子碱、胆碱、甜菜碱和甘磷酸胆碱)的分布和变化规律。结果表明:3种不同基因型油菜籽中4种前体物质的含量均存在显著差异;经过烘炒后,白菜型油菜籽制备的菜籽油中三甲胺含量最高,芥菜型油菜籽的最低;油菜籽经过烘炒后,胆碱和甜菜碱含量有所上升,芥子碱和甘磷酸胆碱含量有所降低,三甲胺及其前体物质主要存在于菜籽饼中,少量转移至菜籽油中 ...
熊欣洁1,丁彩霞2,史海明2,张虹2,毕艳兰1,徐学兵2" XIONG Xinjie1, DING Caixia2, SHI Haiming2, ZHANG Hong2, BI Yanlan1, XU Xuebing2"
doaj   +1 more source

油菜籽微波预处理的干燥动力学及模型研究Drying kinetics and model of rapeseed by microwave pretreatment

open access: yesZhongguo youzhi, 2022
为了探明油菜籽微波预处理过程中的水分变化情况,建立油菜籽微波预处理干燥模型,对油菜籽在料层厚度12 mm、不同微波功率(1.0、1.5、2.0 kW)以及微波功率1.5 kW、不同料层厚度(6、12、18 mm)下预处理后的含水率、水分比和失水速率的变化情况进行了研究,并以常用的3种干燥模型指数模型、单项扩散模型和Page模型进行了数据拟合。结果表明:微波功率越高、料层越薄,油菜籽水分流失越快,微波预处理时间越短;微波预处理过程中油菜籽水分变化情况与Page模型拟合度最好。 In order to ...
杨博,刘昌盛,李文林,王未君,曾仕林 YANG Bo,LIU Changsheng,LI Wenlin,WANG Weijun,ZENG Shilin
doaj   +1 more source

Inversion of Net Photosynthetic Rate in Winter Rapeseed Based on UAV Multispectral Vegetation Indices and Texture Features

open access: yesFood and Energy Security, Volume 15, Issue 2, March/April 2026.
ABSTRACT Net photosynthetic rate (Pn) serves as a key indicator for evaluating plant growth and yield. In order to explore an effective method for monitoring winter rapeseed Pn using unmanned aerial vehicle (UAV) multispectral technology, the winter rapeseed was taken as the research object and the multispectral images were obtained through UAVs in ...
ChengYang Ni   +7 more
wiley   +1 more source

原位酶解制备双低浓香菜籽油工艺研究Process of preparing fragrant rapeseed oil with low erucic acid and low glucosinolate by in-situ enzymatic hydrolysis

open access: yesZhongguo youzhi
旨在为高品质浓香菜籽油制备技术的发展提供参考,以双低油菜籽为研究对象,探究了粉碎度、水分含量和蔗糖酶酶解处理对油菜籽焙炒前后风味前体物质(蔗糖、葡萄糖、果糖和游离氨基酸)及浓香菜籽油风味的影响,同时研究了酶解处理对浓香菜籽油活性营养成分和品质(酸值、过氧化值、多环芳烃)的影响。结果表明:不同粉碎度油菜籽制取的浓香菜籽油挥发性风味物质含量远低于整籽制取的浓香菜籽油,且前者菜青味明显、坚果味寡淡;浓香菜籽油中挥发性风味物质含量总体随油菜籽水分含量的增加而显著增加;油菜籽整籽通过浸泡吸收蔗糖酶酶液(原位酶解 ...
曹平净,隋佳秀,张浩,孙尚德,刘玉兰 CAO Pingjing, SUI Jiaxiu, ZHANG Hao, SUN Shangde, LIU Yulan
doaj   +1 more source

Relationship Between Carbon and Nitrogen Metabolism of Oilseed under High-boron stress

open access: yes浙江大学学报. 农业与生命科学版, 2001
硼是作物正常生长发育所必需的微量元素,对于油菜而言,土壤缺硼与硼毒之间的界限非常狭窄,硼肥施用不当易导致高硼与硼毒现象的发生,使作物受到伤害,因此,研究高硼胁迫对油菜碳氮代谢的作用机制有助于我们了解硼肥过多对油菜的伤害机理.
FANG Yi-hua
doaj   +1 more source

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