The primary active components, antioxidant properties, and differential metabolite profiles of radish sprouts (Raphanus sativus L.) upon domestic storage: analysis of nutritional quality

• Autores: Ru Li, Yi Zhu
• Localización: Journal of the science of food and agriculture, ISSN 0022-5142, Vol. 98, Nº 15, 2018, págs. 5853-5860
• Idioma: inglés
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• Resumen

  • This study aimed to analyze the nutritional quality of radish sprouts (Raphanus sativus L.) after domestic short-term storage. We stored fresh radish sprouts at 25 ± 1 °C and at 4 ± 1 °C for 12 h, and detected phenolic substances, glucosinolates, isothiocyanates, vitamin C, and various antioxidant and abiotic stress-related factors. We investigated nutrient-related metabolic differences and associated pathways and postharvest treatment effects on nutritional quality using metabolomic analysis.; Results: Most active substances and antioxidant properties, but not phenolic acids and vitamin C, decreased significantly (P < 0.05) upon domestic storage; this reduction decelerated at low temperatures. Short-term storage disrupted redox balance; low temperature enhanced stress resistance. Differences were observed in amino acid and vitamin derivatives, phospholipid accumulation, and organic acids. Short-term storage at ambient temperature promoted lysine, threonine, cysteine, vitamin H, phospholipid, and lauric (dodecanoic) acid accumulation, inhibiting proline, phosphatidic acid (PA) (14:1(9Z)/12:0), and phosphatidylcholine (PC) (O-18:0/O-18:0) accumulation; low-temperature, short-term storage promoted myristic acid and phospholipid accumulation and reduced methionine synthesis and vitamin H and K accumulation.; Conclusion: Overall, the nutritional quality of radish sprout decreased upon short-term storage, with differences in certain active substances. © 2018 Society of Chemical Industry.; © 2018 Society of Chemical Industry.