Yinglin Guo

Abstract Guava is highly perishable with postharvest decay and senescence, limiting storage and marketability. This study examined the synergistic regulatory effects of combined AsA + MT (AM) treatment on preserving ‘Pearl’ guava. Systematic analyses assessed fruit storage quality, antioxidant activity, and cell wall metabolism during storage. AM treatment markedly reduced browning and weight loss, maintained firmness, soluble solids, and vitamin C, and slowed titratable acidity decline.

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Investigation of the preparation, characterization, and whitening activity of co-amorphous glabridin and oxymatrine† Glabridin (Gla) is a natural active ingredient extracted from licorice root with good whitening activity. However, its poor solubility limits its further application. Therefore, this study aimed to develop a novel co-amorphous Gla–OMT raw material using oxymatrine (OMT) as a co-former, aiming to improve its physicochemical properties and enhance its whitening activity.