Content of phenolic compounds in fruit processing residues by mass spectrometry

Abstract

This study identified and quantified five phenolic compounds, and evaluated the antioxidant capacity in vitro of fifteen native and exotic Brazilian fruit seeds that are typically discarded as waste. The contents of phenolic compounds were determined by ultra-performance liquid chromatography coupled with tandem mass spectrometry, and the antioxidant capacity was determined by oxygen radical absorbance capacity (ORAC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH•) antioxidant assays. The results showed the antioxidant activity of Campomanesia pubescens, Hovenia dulcis Thunberg and Syzygium jambos (L.) Alston in the ORAC assay, and Hymenaea stigonocarpa, Hovenia dulcis Thunberg and Campomanesia pubescens in the DPPH• assay. Among the fifteen samples, four were highlighted regarding phenolic compound analyzes: Hovenia dulcis Thunberg (5.723 µg g-1) for gallic acid and myricetin (111.057 µg g-1), Passiflora edulis (1.208 µg g-1) for chlorogenic acid, Annona atemoya (1.0580 µg g-1) for vanillic acid, and Campomanesia pubescens (0.420 µg g-1) for ferulic acid. Therefore, these fruit seeds can be used as alternative sources of natural antioxidants.

Campomanesia guazumifolia (Cambess.) O. Berg: Ethnobotany, cultivation and potentialities

“…In the study developed by Lescano et al (2023) were quantified 27.3 ± 0.1 mg mL -1 of quinic acid, 132.3 ± 0.7 of mg mL -1 of rutin, 26.9 ± 0.2 mg mL -1 of apigenin 6,8-diglucoside and 14.1 ± 0.1 mg mL -1 of (luteolin 8-C-glucoside. Vagula et al, (2019) quantified 393.005 μg g -1 of gallic acid and 0.847 μg g -1 of myricetin in the pulp of C. guazumifolia, with chlorogenic, vanillic acid and being below the quantification limit (Figure 8).…”

The Phytochemical Constituents and Pharmacological Activities of Annona atemoya: A Systematic Review

“…Different extracts of A. atemoya and the phytochemical constituents isolated from several parts of the plant exhibit pharmacological activities such as anti-inflammatory and antinociceptive activity [45], antioxidant [11,31,46,47], antibacterial [46], anti-angiogenic [12], neuroprotective and anti-Alzheimer's [9,11], anticancer [20,31,44], hypolipidemic [48] and antiobesity activity [49], in both in vivo and in vitro studies (Table 1).…”

“…In an in vitro study, the methanolic seed extract of A. atemoya was examined for antioxidant potential [47]. Both 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and oxygen radical absorbance capacity (ORAC) assays were employed.…”

“…Both 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and oxygen radical absorbance capacity (ORAC) assays were employed. For the ORAC and DDPH assays, the Trolox equivalent antioxidant activity of the methanolic seed extract was recorded at 46.14 ± 1.25 and 4.82 ± 0.32 µmol TE g −1 , respectively [47].…”

Reusing a residue from the juice industry: extraction of oil from passion fruit seeds and its incorporation into liposomes

“…9 Some studies published in the literature show that Passiflora edulis seeds are also rich in bioactive compounds that present high antioxidant capacity 7 and anti-inflammatory, vasorelaxing, 4,[10][11][12] antitumor, antidiabetic and anti-adipogenic properties. [13][14][15] Vagula et al 16 identified phenolic compounds in Passiflora edulis seeds such as gallic acid (hydroxybenzoic acid) and chlorogenic acid (hydroxybenzoic acid).…”