Faculty of Food Science and Technology, University Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia.
Food Science and Technology Research Centre, Malaysian Agricultural Research and Development Institute (MARDI), Persiaran MARDI-UPM, Serdang 43400, Selangor, Malaysia.
Molecules. 2019 Oct 29;24(21):3898. doi: 10.3390/molecules24213898.
Stingless bee honey produced by from different botanical origins was characterised and discriminated. Three types of stingless bee honey collected from acacia, gelam, and starfruit nectars were analyzed and compared with honey. The results showed that stingless bee honey samples from the three different botanical origins were significantly different in terms of their moisture content, pH, free acidity, total soluble solids, colour characteristics, sugar content, amino acid content and antioxidant properties. Stingless bee honey was significantly different from honey in terms of physicochemical and antioxidant properties. The amino acid content was further used in the chemometrics analysis to evaluate the role of amino acid in discriminating honey according to botanical origin. Partial least squares-discriminant analysis (PLS-DA) revealed that the stingless bee honey was completely distinguishable from honey. Notably, a clear distinction between the stingless bee honey types was also observed. The specific amino acids involved in the distinction of honey were cysteine for acacia and gelam, phenylalanine and 3-hydroxyproline for starfruit, and proline for honey. The results showed that all honey samples were successfully classified based on amino acid content.
不同植物源的无刺蜜蜂蜂蜜的特性和区分。从金合欢、瓜纳仁和杨桃花蜜中采集的三种类型的无刺蜜蜂蜂蜜进行了分析,并与 蜂蜜进行了比较。结果表明,来自三种不同植物源的无刺蜜蜂蜂蜜样本在水分含量、pH 值、游离酸度、总可溶性固体、颜色特征、糖含量、氨基酸含量和抗氧化性能方面存在显著差异。无刺蜜蜂蜂蜜在理化性质和抗氧化性能方面与 蜂蜜有显著差异。氨基酸含量进一步用于化学计量学分析,以根据植物来源评估氨基酸在鉴别蜂蜜中的作用。偏最小二乘判别分析(PLS-DA)表明,无刺蜜蜂蜂蜜与 蜂蜜完全可区分。值得注意的是,还观察到无刺蜜蜂蜂蜜类型之间的明显区别。区分蜂蜜的特定氨基酸为半胱氨酸(用于金合欢和瓜纳仁)、苯丙氨酸和 3-羟基脯氨酸(用于杨桃)以及脯氨酸(用于 蜂蜜)。结果表明,所有蜂蜜样本均基于氨基酸含量成功分类。