PDF(Pubmed)
Abstract：
Jabuticaba (Plinia cauliflora) and jambolan (Syzygium cumini) fruits are rich in phenolic compounds with antioxidant properties, mostly concentrated in the peel, pulp, and seeds. Among the techniques for identifying these constituents, paper spray mass spectrometry (PS-MS) stands out as a method of ambient ionization of samples for the direct analysis of raw materials. This study aimed to determine the chemical profiles of the peel, pulp, and seeds of jabuticaba and jambolan fruits, as well as to assess the efficiency of using different solvents (water and methanol) in obtaining metabolite fingerprints of different parts of the fruits. Overall, 63 compounds were tentatively identified in the aqueous and methanolic extracts of jabuticaba and jambolan, 28 being in the positive ionization mode and 35 in the negative ionization mode. Flavonoids (40%), followed by benzoic acid derivatives (13%), fatty acids (13%), carotenoids (6%), phenylpropanoids (6%), and tannins (5%) were the groups of substances found in greater numbers, producing different fingerprints according to the parts of the fruit and the different extracting solvents used. Therefore, compounds present in jabuticaba and jambolan reinforce the nutritional and bioactive potential attributed to these fruits, due to the potentially positive effects performed by these metabolites in human health and nutrition.
摘要：
Jabuticaba（Pliniacauliflora）和jambolan（Syzygiumcumini）果实富含具有抗氧化特性的酚类化合物，主要集中在果皮中，纸浆,和种子。在识别这些成分的技术中，纸喷雾质谱（PS-MS）是一种用于直接分析原材料的样品环境电离方法。这项研究旨在确定果皮的化学特征，纸浆,以及Jabuticaba和Jambolan果实的种子，以及评估使用不同溶剂（水和甲醇）获得水果不同部分的代谢物指纹的效率。总的来说,在jabuticaba和jambolan的水和甲醇提取物中初步鉴定出63种化合物，图28是正离子模式,35是负离子模式。黄酮类化合物（40%），其次是苯甲酸衍生物（13％），脂肪酸（13%），类胡萝卜素（6%），苯丙素类化合物（6%），单宁(5%)是发现数量更多的物质组，根据水果的部位和使用的不同提取溶剂产生不同的指纹。因此,jabuticaba和jambolan中存在的化合物增强了归因于这些水果的营养和生物活性潜力，由于这些代谢物对人类健康和营养的潜在积极影响。
