Ethanolic extract from Capsicum chinense Jacq. ripe fruits: phenolic compounds, antioxidant activity and development of biodegradable films

Abstract

Capsicum spp. pepper has great economic and social importance in agribusiness worldwide, mainly associated with its high performance in cookery as a spice. This study aimed at determining the chemical profile of the ethanolic extract from Capsicum chinense Jacq. (EECC) ripe fruits by liquid chromatography-mass spectrometry (LC-MS) and at evaluating its antioxidant activity by DPPH, ABTS and FRAP. Besides, biodegradable films were prepared by incorporating EECC into arrowroot biofilms. LC-MS identified 10 phenolic compounds, a fact that corroborates its high concentration of total phenolic compounds, i. e., 277.62 ± 12.06 mg gallic acid/100g crude extract. High antioxidant activity of EECC was expressed as IC 50 values for reagents DPPH (IC 50 = 18.04 µg/mL), ABTS (IC 50 = 25.33 µg/mL) and FRAP (IC 50 = 128.58 µg/mL). Biodegradable films incorporating different doses of EECC (250-1000 µL) were obtained by a casting technique. The higher the EECC concentration, the higher their thickness, color, variable moisture content and the lower their solubility. This study proposes a new use to the plant extract from C. chinense, a natural product that may be applied to the development of biofilms to coat food and retard its deterioration. In addition, antioxidant activity of this type of pepper is also shown.

[RETRACTED ARTICLE]Isolation of curcumol from zedoary turmeric oil and its inhibitory effect on growth of human hepatocellular carcinoma xenografts in nude mice

“…Studies have found that many plants contain the ingredients which have good activities in antioxidant, anti-inflammatory, anti-tumor and other aspects (Costa et al, 2020;Huang et al, 2020;Santos et al, 2021). Curcumol is a sesquiterpene compound isolated from the zedoary turmeric oil which has long been used as a folk medicine in China for many years (You et al, 2005).…”

Preparation of total saponins from Panax japonicus and their protective effects on learning and memory ability of aging mice

“…Studies have found that many plant extracts have good pharmacological effects (Lee et al, 2020;Wu et al, 2020;Santos et al, 2021). As TSPJ are the main active ingredients of Panax japonicus, a common medicinal plant growing in China, this study prepared the TSPJ, and investigated their pharmacological effects.…”

Bioactive Edible Films and Coatings Based in Gums and Starch: Phenolic Enrichment and Foods Application

“…Active starch and gum-based films and coatings were prepared mainly by casting method. Glycerol was the most used plasticizer in the preparation of active coating and films [90][91][92][93][94]. In general, the percentage of bioactive compound or extract in starch and gum-based coatings is low, ranging between 0.03 and 1.20%, and all the extracts and isolated bioactive compounds tested acted at the level of lipidic oxidation and microbiological contamination, preventing food spoilage and increasing its shelf-life.…”

“…In order to solve these problems, synthetic preservatives, such as BHT and BHA, are commonly added to foods in order to prevent lipid oxidation and food spoilage [17,94,[110][111][112]. However, due to the apparent toxic effects of these additives and the search for healthier food products [93], natural compounds such as polyphenols appear as an alternative to synthetic additives [17], serving as a valuable ally in the quality preservation of foods and extending their shelf life [103].…”

“…Liquid chromatography coupled to mass spectrometry (LC-MS) analysis of ethanolic extract showed the presence of phenolic acids (protocatechuic ((10), Figure 5), gentisic ((11), Figure 5), caffeic, vanillic ((9), Figure 5), p-coumaric and ferulic ((2), Figure 5) acids), flavonoids (quercetin ((15), Figure 5), naringenin ((16), Figure 5), luteolin ((17), Figure 5) and kaempferol ((18), Figure 5)) and alkaloids (capsaicin and dihydrocapsaicin). Active starch films showed good antioxidant capacity attributed to phenolic compounds and increased films thickness and decreased solubility [93].…”