Zhongguo youzhi (Jun 2022)

四川省凉山州德昌县10种核桃及其油脂品质对比分析Comparative analysis of 10 walnuts and their oil quality in Dechang county, Liangshan prefecture, Sichuan province

  • 杨珺杰1， 刘文龙1， 邹强1， 文永平1， 吴万波2， 黄义1， 何京蓉1， 王妍淳1 YANG Junjie1，LIU Wenlong 1, ZOU Qiang1, WEN Yongping1，WU Wanbo2, HUANG Yi1, HE Jingrong1, WANG Yanchun1

DOI
https://doi.org/10.19902/j.cnki.zgyz.1003-7969.210317
Journal volume & issue
Vol. 47, no. 6
pp. 117 – 120

Abstract

Read online

为合理开发利用四川省凉山州德昌县的核桃资源，对该产地采摘的10种核桃及其油脂品质进行对比分析，检测了核桃横径、平均果质量、出仁率，核桃仁水分含量、粗脂肪含量、出油率，核桃油酸值、过氧化值和脂肪酸组成。结果表明：10种核桃的平均果质量为7.76~17.03 g，横径为29.60~48.17 mm，出仁率为40.76%~57.39%；核桃仁水分含量均低于5%，粗脂肪含量为57.54%~6926%；核桃油过氧化值与酸值均符合国标要求，脂肪酸组成以不饱和脂肪酸为主，棕榈酸、硬脂酸、油酸、亚油酸和α-亚麻酸含量分别为5.25%~5.93%、2.17%~3.85%、27.32%~4450%、42.22%~57.13%和4.43%~6.44%。综合考虑各项因素，德昌37号、德昌7号和德昌11号更适合用于加工生产核桃油。 For the rational development and utilization of walnut resources in Dechang county, Liangshan prefecture, Sichuan province, 10 walnuts and their oil quality in Dechang county were compared and analyzed. The horizontal diameter, average fruit weight and kernel rate of walnut, moisture content and crude fat content, and oil yield of walnut kernel, acid value, peroxide value and fatty acid composition of walnut oil were determined. The results showed that the average fruit weight, horizontal diameter and kernel rate of 10 walnuts was 7.76-17.03 g, 29.60-48.17 mm and 40.76%-57.39% respectively; the moisture content of walnut kernel was all less than 5%; the crude fat content of walnut kernel was 5754%-69.26%; the peroxide value and acid value met the requirements of the national standard; the fatty acid composition was mostly unsaturated fatty acid, and the contents of palmitic acid, stearic acid, oleic acid, linoleic acid and α-linolenic acid were 5.25%-5.93%, 2.17%-3.85%, 27.32%-44.50%, 42.22%-57.13% and 443%-6.44% respectively. Considering all factors, Dechang 37, Dechang 7 and Dechang 11 are more suitable for processing and producing walnut oil.

Keywords