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Journal of Integrative Agriculture  2023, Vol. 22 Issue (1): 265-278    DOI: 10.1016/j.jia.2022.09.015
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Influence of two-stage harvesting on the properties of cold-pressed rapeseed (Brassica napus L.) oils

NING Ning1*, HU Bing2*, BAI Chen-yang1, LI Xiao-hua3, KUAI Jie1, HE Han-zi1, REN Yi-lin4, WANG Bo1, JIA Cai-hua2, ZHOU Guang-sheng1, ZHAO Si-ming2

1 Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River (Ministry of Agriculture and Rural Affairs), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R.China

2 Key Laboratory of Environment Correlative Dietology (Ministry of Education), College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R.China

3 School of Life Science and Technology, Wuhan Polytechnic University, Wuhan 430023, P.R.China

4 College of Engineering, Huazhong Agricultural University, Wuhan 430070, P.R.China

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收获过程是油菜(Brassica napus L.)生产的重要环节,籽粒产量、菜籽油品质及产业效益皆因收获方式的不同而异。本文通过人工模拟联合收割和两段式收割,对比分析了黄冈和襄阳收获的两个油菜品种压榨菜籽油的色泽、过氧化值(POV)、生育酚含量、脂肪酸组成和极性总多酚(PTP)含量的变化情况,以期考察收获方式对压榨菜籽油品质的影响。结果表明,两种收获方式所制备菜得籽油品质存在显著差异。联合收获方式制备压榨菜籽油的R值、过氧化值、总生育酚含量、亚油酸含量、亚麻酸含量、极性总酚含量较分段收获方式分别低约27.6%5.7%15.8%2.0%0.5%28.6%,襄阳和华油杂62在两个地区和品种中表现较好。综上所述,联合收获适宜时间为终花后38-41天左右进行,分段收获在终花后35天左右,后熟6天得到的压榨菜籽油品质更佳。


Rapeseed (Brassica napus L.) harvesting method is critical since it significantly determines the seed yield, oil quality, and industrial efficiency.  This study investigated the influences of harvesting methods on the quality of cold-pressed rapeseed oil of two varieties.  Oil color, peroxide value (POV), tocopherol content, fatty acid composition, and polarity of total polyphenols (PTP) contents of two rapeseed varieties in Huanggang and Xiangyang were compared through artificially simulated combined harvesting and two-stage harvesting.  Results showed significant differences in the quality of rapeseed oil between the two harvesting methods.  The red value (R-value), POV, total tocopherol contents, linoleic and linolenic acid content, and PTP content of the pressed rapeseed oil prepared by the combined harvesting method were about 27.6, 5.7, 15.8, 2.0, 0.5, and 28.6% lower than those of the oil produced from the two-stage harvesting method, respectively.  Xiangyang and Huayouza62 performed better in the two regions and two varieties, respectively.  To sum up, the rapeseed oil obtained 41–44 days after final flowering of combined harvesting, 35 days after final flowering, and six days of post-ripening of the two-stage harvesting had the best quality.

Keywords:  rapeseed       two-stage harvesting        combined harvesting        oil quality  
Received: 30 May 2021   Accepted: 18 August 2022

This work was supported by the National Key R&D Program of China (2021YFD1600502).

About author:  NING Ning, E-mail:; Correspondence JIA Cai-hua, E-mail: * These authors contributed equally to this study.

Cite this article: 

NING Ning, HU Bing, BAI Chen-yang, LI Xiao-hua, KUAI Jie, HE Han-zi, REN Yi-lin, WANG Bo, JIA Cai-hua, ZHOU Guang-sheng, ZHAO Si-ming. 2023. Influence of two-stage harvesting on the properties of cold-pressed rapeseed (Brassica napus L.) oils. Journal of Integrative Agriculture, 22(1): 265-278.

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