Electrohydrodynamic drying of citrus (Citrus sinensis L.) peel: Comparative evaluation on the physiochemical quality and volatile profiles

Food Chemistry, Journal Year: 2023, Volume and Issue: 429, P. 136832 - 136832

Published: July 11, 2023

Language: Английский

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Organic wastes of Citrus sinensis Peels- a source of eco-friendly and sustainable bioactive compounds for promoting health

Asian Journal of Biochemistry Genetics and Molecular Biology, Journal Year: 2024, Volume and Issue: 16(2), P. 21 - 31

Published: Feb. 8, 2024

To determine the phytochemicals, radical scavenging and antioxidant potential of orange peel extract. Citrus sinensis were subjected to extraction with ethanol. Gas chromatography (GC) was utilized phytochemical composition Hydrogen peroxide, superoxide, nitric oxide, hydroxyl assays conducted assess Antioxidant activities extracts determined via 2,2-diphenylpicrylhydrazyl (DPPH) free activity, ferric reducing power (FRAP) assay, ABTS scavenging, total capacity (TAC) assay. The GC-FID analysis revealed presence alkaloids, flavonoids, polyphenols, tannins, sapogenin, steroids in results demonstrated extract’s ability scavenge hydrogen oxide radicals. extract observed be concentration-dependent, comparisons made standard antioxidants ascorbic acid BHT. Peels from citrus represent a valuable source demonstrating significant activities.

Language: Английский

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Egyptian Citrus Essential Oils Recovered from Lemon, Orange, and Mandarin Peels: Phytochemical and Biological Value

Horticulturae, Journal Year: 2024, Volume and Issue: 10(2), P. 180 - 180

Published: Feb. 16, 2024

Citrus peels are an important by-product of citrus processing industries, but a large part is considered waste. There has been increased attention in the last five years on these industrial by-products, especially those containing residual essential oils (EOs). Lemon, orange, and mandarin from Egypt were subjected to hydro-distillation obtain EOs, which analyzed via mass spectrometry (GC/MS) by building Global Natural Products Social Molecular Networking (GNPS-MN) for purpose visually exploring volatile components species. The constructed MN revealed that D-Limonene, α-pinene, β-pinene dominant constituents three Egyptian EOs exhibited promising activities as antioxidants using two tested methods: 1,1-diphenyl-2-picryl-hydrazil (DPPH) nitric oxide (NO) compared with vitamin C. Lemon EO proved excellent antimicrobial activity against Gram-positive negative bacteria. Additionally, showed good yeast Candida albicans. Regarding anti-inflammatory assay, COX-1 COX-2 inhibitors. This study concludes extracted peel waste can be valorized innovative strategy food preservation or may incorporated cosmetics pharmaceutical formulations alignment circular economy principles.

Language: Английский

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Effect of Storage and Drying Treatments on Antioxidant Activity and Phenolic Composition of Lemon and Clementine Peel Extracts

Molecules, Journal Year: 2023, Volume and Issue: 28(4), P. 1624 - 1624

Published: Feb. 8, 2023

Obtaining polyphenols from horticultural waste is an emerging trend that enables the valorization of resources and recovery value-added compounds. However, a pivotal point in exploitation these natural extracts assessment their chemical stability. Hence, this study evaluates effect temperature storage (20 -20 °C) drying methods on phenolic composition antioxidant activity clementine lemon peel extracts, applying HPLC-DAD-MS, spectrophotometric methods, chemometric tools. Vacuum-drying treatment at 60 °C proved to be rather suitable for retaining highest hesperidin, ferulic, coumaric contents extracts. Lemon showed increase acids after oven-drying 40 °C, while hesperidin rutin were sustained better °C. Hydroethanolic stored 90 days preserved total flavonoid peels, unlike peels. Additionally, more than 50% initial concentration was maintained up 51 days, highlighting half-life time 71 Temperature not significant preservation evaluated, except gallic acid, thus, could kept 20

Language: Английский

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Determination of the Major By-Products of Citrus hystrix Peel and Their Characteristics in the Context of Utilization in the Industry

Molecules, Journal Year: 2023, Volume and Issue: 28(6), P. 2596 - 2596

Published: March 13, 2023

Kaffir lime (Citrus hystrix) is a popular citrus in Southeast Asia. Despite the growing interest peel of fruit, leaves are most frequently used part fruit. The aim study was to determine main by-products peel, such as pectins, minerals, essential oil, and bioactive compounds, evaluate possibility using them various branches industry. In oil obtained by hydrodistillation performed TGA chromatography technique (GC-MS), sabinene (31.93%), β-pinene (26%), limonene (19%) were selected abundant volatile compounds. Nine microelements (Fe, Zn, Cu, Mn, Co, Ni, Cr, Mo, V), four macroelements (Mg, Ca, K, Na), seven ballast substances (Cd, Hg, Pb, Al, V, Sr, Pt) also determined microwave plasma-atomic emission spectrometry (MP-AES). case microelements, iron 32.72 ± 0.39 mg/kg DW (dry weight) had highest concentration. macroelements, calcium content 9416 34 DW. Optimization pectin extraction selecting citric acid obtaining yield 7.6-17.6% for 9.9-28.2% ultrasound-assisted (UAE), depending on temperature used. pectins characterized degree methylation, galacturonic content, 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, DSC (differential scanning calorimetry) analysis. Among contents polyphenols (22.63 2.12 mg GAE/g DW), flavonoids (2.72 0.25 CE/g DW, vitamin C (2.43 0.19 Asc), xantoproteins + carotenes (53.8 4.24 ug), anthocyanins (24.8 1.8 CGE/kg chlorophylls A B (188.5 8.1, 60.4 3.23 µg/g DW) evaluated. Antioxidant capacity (cupric ion-reducing antioxidant capacity) CUPRAC DPPH assays provided with results 76.98 12.01 1.02 µmol TE/g respectively.

Language: Английский

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