Palynological spectrum, proximate and fatty acid (FA) composition of eight bee bread samples of different botanical origins were examined and significant variations were observed. The samples were all identified as monofloral, namely Castanea sativa (94.4%), Trifolium spp. (85.6%), Gossypium hirsutum (66.2%), Citrus spp. (61.4%) and Helianthus annuus (45.4%). Each had moisture content between 11.4 and 15.9%, ash between 1.9 and 2.54%, fat between 5.9 and 11.5%, and protein between 14.8 and 24.3%. A total of 37 FAs were determined with most abundant being (9Z,12Z,15Z)-octadeca-9,12,15-trienoic, (9Z,12Z)- -octadeca-9,12-dienoic, hexadecanoic, (Z)-octadec-9-enoic, (Z)-icos-11-enoic and octadecanoic acids. Among all, cotton bee bread contained the highest level of ω-3 FAs, i.e. 41.3%. Unsaturated to saturated FA ratio ranged between 1.38 and 2.39, indicating that the bee bread can be a good source of unsaturated FAs.

中文翻译：

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蜂面包的脂肪酸和附近成分。

检查了八种不同植物来源的蜂面包样品的孢粉谱，近邻和脂肪酸（FA）组成，并观察到显着变化。样品均被鉴定为单花的，即栗木（94.4％），三叶草。（85.6％），陆地棉（66.2％），柑橘属。（61.4％）和向日葵（45.4％）。每一种的水分含量在11.4至15.9％之间，灰分在1.9至2.54％之间，脂肪在5.9至11.5％之间，蛋白质在14.8至24.3％之间。总共确定了37个FA，其中最丰富的是（9Z，12Z，15Z）-octadeca-9,12,15-三烯酸，（9Z，12Z）--octadeca-9,12-二烯酸，十六烷酸，（Z）-十八碳九烯酸，（Z）-二十碳十一烯酸和十八碳烯酸。其中，棉蜂面包中ω-3FA的含量最高，即41.3％。不饱和脂肪酸与饱和脂肪酸的比率介于1.38和2.39之间，表明蜂面包可能是不饱和脂肪酸的良好来源。