Results 11 to 20 of about 429 (110)
Rapid assessment of insect pollination services to inform decision‐making
Conservation Biology, Volume 36, Issue 4, August 2022., 2022 Abstract Pollinator declines have prompted efforts to assess how land‐use change affects insect pollinators and pollination services in agricultural landscapes. Yet many tools to measure insect pollination services require substantial landscape‐scale data and technical expertise.
Fabrizia Ratto +15 more
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Journal of Applied Ecology, Volume 58, Issue 10, Page 2287-2304, October 2021., 2021 Field boundary features have an important role in stabilising pollinator populations and pollination service in rotational systems, although maintenance of larger semi‐natural habitat patches may be more effective for stabilising less mobile solitary bee populations.
Emma Gardner +16 more
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Genomic responses to increased temperature and pollinator selection in Brassica rapa L. [PDF]
New PhytolSummary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Ding Y, Schiestl FP.
europepmc +2 more sources
菜籽油中内源性香兰素的形成及含量研究Formation and content of endogenous vanillin in rapeseed oil
Zhongguo youzhi为探究菜籽油中是否存在内源性香兰素,对不同产地、加工工段、炒制温度的油菜籽及菜籽油中香兰素、甲基香兰素和乙基香兰素进行了检测。结果表明：所有样本中均未检出甲基香兰素和乙基香兰素；不同产地油菜籽中香兰素含量差异较大，含量范围为123.55～1 669.25 μg/kg；加工过程中，炒制油菜籽中香兰素含量较炒制前大幅增加，且其压榨菜籽饼中的香兰素含量高于压榨菜籽原油中的；随着炒制温度的上升，炒制油菜籽、压榨菜籽原油、压榨菜籽饼中香兰素含量增加，含量范围为189.93～5 080.00 μg/kg。综上 ...
刘建国1，2，张琪1，2，王盛宇1，2，代立刚1，2，刘昌树1，2，迟华忠1，2，刘玉兰3 LIU Jianguo1，2, ZHANG Qi1，2, WANG Shengyu1，2,DAI Ligang1，2, LIU Changshu1，2, CHI Huazhong1，2, LIU Yulan3
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不同脱胶方法对浓香菜籽油品质的影响Effect of different degumming methods on the quality of fragrant rapeseed oil
Zhongguo youzhi, 2023 旨在为实际生产中选择合适的浓香菜籽油脱胶方法提供参考，以浓香菜籽原油为原料，分别采用水化法、饱和食盐水法和柠檬酸法进行脱胶，测定脱胶油磷脂残留量及脱胶前后浓香菜籽油酸值、过氧化值、水分含量、脂肪酸组成及挥发性物质含量，研究不同脱胶方法对浓香菜籽油品质的影响。结果表明：3种脱胶方法脱胶油磷脂残留量从大到小依次为水化法>柠檬酸法>饱和食盐水法；与脱胶前比较，脱胶浓香菜籽油的酸值显著下降，过氧化值、水分含量及油酸、亚油酸含量升高，但3种脱胶方法之间总体无显著差异 ...
屈之昊1，张妍1，张旭萍1，景冰玉1，黄丹2，于修烛1 QU Zhihao1, ZHANG Yan1, ZHANG Xuping1, JING Bingyu1, HUANG Dan2, YU Xiuzhu1
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Overreliance on Orthographic Similarity in L2‐Japanese Conceptual Processing by L1‐Chinese Learners
International Journal of Applied Linguistics, EarlyView.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
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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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Zhongguo 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"
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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
Zhongguo 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
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Food 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
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