Ribes himalense as potential source of natural bioactive compounds: Nutritional, phytochemical, and antioxidant properties

Abstract

Ribes himalense Royle ex Decne. (family Saxifraaceae, subfamily Grossulariaceae, genus Ribes) is a wild berry fruit with illustrated health‐promoting features, which widely distributed in Northwest China are deficiently exploited. This study aimed to assess the potential of a Ribes himalense as a source of natural bioactive compounds through characterizing its nutraceutical characteristics, phytochemicals properties, and antioxidant ability. Fresh berries were quantitatively analyzed for proximate composition, minerals, vitamins, amino acids, total polyphenols, total flavonoids, anthocyanins, procyanidin, and polysaccharides contents through China National Food Safety Standard; the characterization and identification of extracts of wild berries obtained with ethanol 30%, ethanol 50%, and ethanol 95% were firstly performed by UPLC‐Triple‐TOF‐MS2. Furthermore, antioxidant activity of the ethanol extract was evaluated via different assay methods such as DPPH, ABTS, and FRAP. The results indicated that the most important bioactive composition was procyanidin (0.72%), polyphenols (0.49%), total flavonoids (0.38%), vitamin C (64.6 mg/100g FW), and K (218.44 mg/100 g FW), and a total of 95 compounds were detected with polyphenols, flavonoids, and proanthocyanidins as the dominant, and also ethanol extract possessed stronger antioxidant activity. These results suggested that Ribes himalense fruit has great potential in protecting human health, with the focus on the development of functional products.

Nutrient evaluation of the seed, pulp, flesh, and peel of spaghetti squash

“…Vitamin A (V A ), vitamin B 1 (V B1 ), vitamin B 2 (V B2 ), and vitamin C (V C ) contents in different parts of SS were assessed using HPLC methods (GB 5009.82-2016, GB 5009.84-2016, GB 5009.85-2016, and GB 5009.86-2016 (Sun et al, 2021).…”

“…Calcium (Ca), potassium (K), sodium (Na), iron (Fe), zinc (Zn), and selenium (Se) contents were determined using the ICP-MS method i (GB 5009.268-2016), and phosphorus (P) was determined using the molybdenum blue spectrophotometric method (GB 5009.87-2016) (Sun et al, 2021).…”

An Integrated Strategy for Investigating Antioxidants from Ribes himalense Royle ex Decne and Their Potential Target Proteins

“…It is mainly distributed in Sichuan, Qinghai, and Tibet of China. In Tibetan and Uyghur medicine systems, R. himalense is used to treat oxidative stress, arthritis, hepatitis, and various vascular diseases [ 4 , 5 , 6 ]. The fruit of R. himalense is a berry and is often used by folk to produce juices, jams, wines, preserves, and other highly nutritious by-products.…”

An integrated chromatographic strategy to discover free radical inhibitors from trace fraction of Ribes himalense Royle ex Decne

“…himalense, a small shrub from the genus Ribes of Grossulariaceae family, is mainly distributed in the Yunnan, Tibet, Sichuan, and Qinghai provinces of China, with rich wild resources (Lu 1995). As a typical edible plant of medicinal value, R. himalense has been adopted in the Uyghur and Tibetan medical systems for its ability to scavenge free radicals, detoxify, exert anti-in ammatory effect and treat vascular diseases (Gao et al 2020;Sun et al 2021). Furthermore, in folk, stems and leaves of R. himalense are often consumed as tea, to clear heat, bacteria, and to moisten the liver.…”