双螺杆冷榨茶籽油的中试生产

为了提高油茶籽的综合利用价值，克服传统高温热榨和精炼导致茶籽油的一些营养成分和固有香味的损失，一种双螺杆冷榨茶籽油的生产工艺被开发。中试生产试验结果表明，当入榨油料含水率6.0%，仁中含壳率8.0%时，最大榨膛温度不超过60℃，饼中残油率为3.6%，所生产的冷榨茶籽油达到国标压榨成品油茶籽油一级标准。与传统的精炼茶籽油相比，冷榨茶籽油中维生素E质量分数大大高于精炼油（P〈0.05），是精炼油的2.6倍，不饱和脂肪酸和不皂化物的质量分数也明显高于精炼油（P〈0.05）。冷榨茶籽饼的粗蛋白、可溶性糖和淀粉的质量分数均高出浸出饼粕1倍左右，而粗纤维质量分数下降55.16%，茶皂素的质量分数也显著增加...

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Bibliographic Details
Published in农业工程学报 Vol. 30; no. 19; pp. 300 - 308
Main Author 李诗龙 刘协舫 张永林 刘强高
Format Journal Article
LanguageChinese
Published 武汉轻工大学机械工程学院,武汉,430023%武汉新概念农业机械设备制造有限公司,武汉,430030 2014
Subjects
冷榨油
双螺旋压榨
工艺
提取
油品质量
油茶籽
脂肪酸
twin-screw pressing
oil camellia seeds
脂肪酸
油茶籽
fatty acid
提取
technology
extraction
双螺旋压榨
oil quality
油品质量
冷榨油
cold-presse qualityd oil
工艺
Online AccessGet full text
ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.19.036

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Summary:为了提高油茶籽的综合利用价值，克服传统高温热榨和精炼导致茶籽油的一些营养成分和固有香味的损失，一种双螺杆冷榨茶籽油的生产工艺被开发。中试生产试验结果表明，当入榨油料含水率6.0%，仁中含壳率8.0%时，最大榨膛温度不超过60℃，饼中残油率为3.6%，所生产的冷榨茶籽油达到国标压榨成品油茶籽油一级标准。与传统的精炼茶籽油相比，冷榨茶籽油中维生素E质量分数大大高于精炼油（P〈0.05），是精炼油的2.6倍，不饱和脂肪酸和不皂化物的质量分数也明显高于精炼油（P〈0.05）。冷榨茶籽饼的粗蛋白、可溶性糖和淀粉的质量分数均高出浸出饼粕1倍左右，而粗纤维质量分数下降55.16%，茶皂素的质量分数也显著增加了1倍左右（P〈0.05）。经济可行性分析表明，一个日处理30t油茶籽冷榨茶籽油生产车间的效益/费用比为1.28，投资回收期为0.78a，社会经济效益显著，适合于中国油茶籽产区较大规模的生产应用。研究为油茶籽的高效加工与利用提供参考。
Bibliography:11-2047/S
technology;extraction;fatty acid;oil camellia seeds;cold-presse qualityd oil;twin-screw pressing;oil quality
The oil camellia （Camellia oleifera Abel., Theaceae） is notable as an important source of edible oil （known as tea oil or camellia oil） obtained from its seeds in China. Camellia oil with high oleic acid content is coming more into the focus of interest in recent years since the fatty acid composition is more comparable to olive oil. Another important aspect is that the high content of oleic acid results in a high oxidative stability, making this oil interesting for a wide range of applications. Traditional processing of camellia oil extraction is carried out by seed preparation, cooking, hot pressing, solvent extraction, and refining. This results in the loss of some nutritional component and peculiar flavor due to high temperature. A cold-pressed production process for camellia seeds oil was developed for high-quality, tasty, and natural camellia oil, including storage of raw materials, dehul
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.19.036