Ripening process in exocarps of scarlet eggplant (Solanum aethiopicum) and banana (Musa spp.) investigated by Raman spectroscopy

IF 4.1 Q2 FOOD SCIENCE & TECHNOLOGY Food Chemistry Molecular Sciences Pub Date : 2024-04-16 DOI:10.1016/j.fochms.2024.100204
Mariana T.C. Campos , Lenize F. Maia , Jelena Popović-Djordjević , Howell G.M. Edwards , Luiz F.C. de Oliveira
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Abstract

In this work, we used Raman spectroscopy to identify compounds present at different maturation stages of the exocarp of scarlet eggplant and two banana cultivars, ‘prata’ and ‘nanica’. Raman spectral analyses of both fruits showed bands attributed to phenolic acids, flavonoids, carotenoids, and fatty acids. During the scarlet eggplant's maturation process, Raman spectral profile changes are mainly observed in the carotenoid content rather than flavonoids. Furthermore, it is suggested that naringenin chalcone together with β-carotene determines the orange-red color of the ripe stage. Variations in chemical composition among the maturation stages of bananas were observed predominantly in ‘prata’ when compared to ‘nanica’. In contrast to scarlet eggplant changes in the spectral profile were more evident in the content of the flavonoid/phenolic acids. The in situ analysis was demonstrated to be useful as a guide in selecting bioactive compounds on demand from low-cost horticultural waste.

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利用拉曼光谱研究猩红茄子(Solanum aethiopicum)和香蕉(Musa spp.)外果皮的成熟过程
在这项研究中,我们利用拉曼光谱鉴定了猩红茄子和两种香蕉栽培品种 "prata "和 "nanica "外果皮不同成熟阶段的化合物。两种果实的拉曼光谱分析都显示了酚酸、类黄酮、类胡萝卜素和脂肪酸的条带。在大红茄子的成熟过程中,拉曼光谱图谱的变化主要体现在类胡萝卜素含量上,而不是类黄酮上。此外,柚皮苷查尔酮和β-胡萝卜素共同决定了成熟期的橙红色。与 "nanica "香蕉相比,"prata "香蕉在不同成熟阶段的化学成分变化较大。与猩红茄子相比,黄酮/酚酸含量的光谱变化更为明显。事实证明,原位分析可作为从低成本园艺废弃物中按需选择生物活性化合物的指南。
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来源期刊
Food Chemistry Molecular Sciences
Food Chemistry Molecular Sciences Agricultural and Biological Sciences-Food Science
CiteScore
6.00
自引率
0.00%
发文量
83
审稿时长
82 days
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