Biochemistry and Technology Laboratory, Institute of Horticulture, Lithuanian Research Center for Agriculture and Forestry, Kauno st.30, LT-54333, Babtai, Kaunas distr., Lithuania.
Institute of Agriculture and Food Sciences, Vytautas Magnus University Agriculture Academy, Studentu Str.11, Kaunas, LT-53361, Lithuania.
Chem Biodivers. 2019 Sep;16(9):e1900352. doi: 10.1002/cbdv.201900352. Epub 2019 Aug 14.
In the food industry, quince seeds are discarded as waste in the production process. Their use therefore creates added value and opens up the possibility of using no-waste processing technologies. Three types of waste were investigated: after juicing, after the manufacture of puree and syrup. The results showed that the yield of quince seeds (Chaenomeles japonica (Thunb.) Lindl. ex Spach from waste left after different production methods varies from 29.8 to 38.3 %. The cold pressed oil yield ranges from 4.9±0.03 to 7.1±0.06 %. The oil yield obtained by Soxhlet extraction varies from 14.6±0.64 to 17.3±0.9 %. Unsaturated fatty acid, especially polyunsaturated fatty acid is predominant in quince seed oil. The linoleic acid content of the quince seed oils was between 47.12 % and 58.49 % of the total fatty acids. The fatty acid composition of oils from post-industrial waste is more appropriate in the skin care industry than in the food industry because of the high ratio of omega-6/omega-3 and high linoleic acid content.
在食品工业中，榅桲籽在生产过程中作为废物被丢弃。因此，它们的使用创造了附加值，并为采用无废物加工技术提供了可能性。研究了三种废物：榨汁后、制作果泥和糖浆后。结果表明，不同生产方法留下的榅桲籽（Chaenomeles japonica（Thunb.）Lindl. ex Spach）废物的产率从 29.8%到 38.3%不等。冷榨油的产率范围从 4.9±0.03%到 7.1±0.06%。索氏提取得到的油的产率从 14.6±0.64%到 17.3±0.9%不等。不饱和脂肪酸，特别是多不饱和脂肪酸，在榅桲籽油中占优势。榅桲籽油中的亚油酸含量在总脂肪酸的 47.12%至 58.49%之间。由于 omega-6/omega-3 的比例高，亚油酸含量高，因此工业废物油的脂肪酸组成更适合在化妆品行业，而不是食品行业。
