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phenol peel

Liu Li Liao, Shi Mo, Hong Qun Luo, Nian Bing Li
Various experimental conditions were tested for the green extract process of corrosion inhibitor from lychee fruit waste, and the optimal extract parameters were selected using potentiodynamic polarization. The best inhibition effect of the ethanol extract of lychee's peel and seed by ultrasound for 1.5 h (EELPS) for mild steel in 0.5 M HCl was obtained at 600 mg/L using electrochemical and weight loss measurements. Theoretical calculations illustrate the adsorption sites and adsorption behavior of effective compounds...
February 28, 2018: Journal of Colloid and Interface Science
Qingzhu Hua, Canbin Chen, Noemi Tel Zur, Huicong Wang, Jingyu Wu, Jianye Chen, Zhike Zhang, Jietang Zhao, Guibing Hu, Yonghua Qin
Pitaya is a new fruit crop, whose exotically colored fruits have excellent nutritional and antioxidant properties. In this study, the primary metabolite profiles of three pitaya cultivars i.e. 'Guanhuahong' (red peel with red pulp), 'Guanhuabai' (red peel with white pulp) and 'Guanhuahongfen' (red peel with pink pulp) were investigated using GC-MS and Ultraviolet-visible spectroscopy. In the fruit pulp, levels of starch, organic acids, and inositol decreased as the fruit matured. Glucose, fructose, sucrose and sorbitol contents increased gradually during fruit maturation and reached their highest levels in the pulp at the mature stage...
March 2, 2018: Plant Physiology and Biochemistry: PPB
Małgorzata Dżugan, Monika Wesołowska, Grzegorz Zaguła, Czesław Puchalski
BACKGROUND: The pomegranate (Punica granatum L.) has gained a reputation as a fruit with many health- promoting properties. It is considered to help prevent or treat various disease risk factors including high blood pressure, high cholesterol, oxidative stress, hyperglycemia and inflammatory activities. It has been demonstrated that certain components of pomegranates, such as polyphenols, have potential antioxidant, anti-inflammatory and anticarcinogenic effects. METHODS: Five commercially available (CA) and three homemade (HM) pomegranate (Puni- ca granatum L...
January 2018: Acta Scientiarum Polonorum. Technologia Alimentaria
P M Rolim, G P Fidelis, C E A Padilha, E S Santos, H A O Rocha, G R Macedo
Melon (Cucumis melo L.) has high economic value and in recent years, its production has increased; however, part of the fruit is wasted. Usually, inedible parts such as peel and seeds are discarded during processing and consumption. Extracts of melon residues were prepared and their phenolic compounds, antioxidants and antiproliferative activities were evaluated. Total phenolic compounds were found in hydroethanolic, hydromethanolic, and aqueous extracts, especially for melon peel (1.016 mg gallic acid equivalent/100 g)...
March 1, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
Sanchita Biswas Murmu, Hari Niwas Mishra
In modified atmosphere packaging of guava, moisture scavenger (MS) sachet containing 30-50 g of coarse silica gel and ethylene scavenger (ES) sachet containing 0-4 g of potassium permanganate was added as per central composite rotatable design. The headspace O2 and CO2 of the packages were studied at 4, 8 and 12 °C for 30 days and thereafter the guava were left for two days to ripen at 30 °C. After that the chilling injuries, percentage acceptable guava, peel color and pulp texture was analyzed...
July 1, 2018: Food Chemistry
Gong Yihui, Jun Song, Lina Du, Mindy Vinqvist, Leslie Campbell Palmer, Sherry Fillmore, XueQun Pang, ZhaoQi Zhang
To gain better understanding on laccase in apples and reveal its role in browning color formation during storage, laccases in apples were investigated. The full-length complementary DNAs encoding laccase genes were obtained from different tissues of apple including flowers, calyx, leaves and fruit peel of 'Red Delicious' and 'Cortland'. The apple laccases were compared to those in other plant species and found to have up to 99% homology to Arabidopsis and litchi. qRT-PCR analysis revealed changes in transcript abundance of LAC genes (2, 7, 9, 12, 14, 15 and 16) during storage and in response to DPA and 1-MCP treatments...
July 1, 2018: Food Chemistry
Lilian Dolores Chel-Guerrero, Enrique Sauri-Duch, Mabel Clara Fragoso-Serrano, Laura Josefina Pérez-Flores, José Luis Gómez-Olivares, Noé Salinas-Arreortua, Edgar Del Carmen Sierra-Palacios, José Alberto Mendoza-Espinoza
Tropical fruit peels are generally discarded as waste, yet they contain bioactive substances that could have various uses; in addition, their pharmacological potential remains unexplored. This study aims to characterize the phytochemical profile, toxicity, and pharmacological potential of methanol extracts obtained from the peels of the following tropical fruit species: Annona squamosa L. (purple sugar apple), Annona reticulata L. (custard apple), Chrysophyllum cainito L. (green star apple), and Melicoccus bijugatus Jacq...
February 26, 2018: Journal of Medicinal Food
Nathália de Andrade Neves, Paulo César Stringheta, Sergio Gómez-Alonso, Isidro Hermosín-Gutiérrez
Extracts of jabuticaba peels show complex chromatographic profiles at 360 nm, with some peaks presenting UV-Vis spectra resembling those of flavonol glycosides and others resembling that of ellagic acid. The presence and tentative identification of these phenolic compounds were comprehensively studied in four species of Brazilian jabuticaba fruit - Plinia trunciflora, variety 'jabuticaba de cabinho'; P. caulifora, varieties 'jabuticaba paulista' and 'jabuticaba canaã-açu'; P. jaboticaba, variety 'jabuticaba sabará'; and P...
June 30, 2018: Food Chemistry
Zahra Derakhshan, Margherita Ferrante, Marzieh Tadi, Farnoosh Ansari, Ali Heydari, Motahreh Sadat Hosseini, Gea Oliveri Conti, Elham Khalili Sadarabad
Pomegranate (Punica granatum L.) is extensively cultivated in Middle East especially in Iran. For centuries, this fruit has been used in Iranian herbal medicine. Pomegranate peel, seed and juice contain considerable amounts of phenolic compounds and have antioxidant activity. Pomegranate peels, juice and seeds from three regions of Natanz, Shahreza, and Doorak were obtained. Antioxidant activity, total phenolic, flavonoids, and flavonols contents of pomegranate peels, seeds and juices extracts were analyzed...
February 12, 2018: Food and Chemical Toxicology
Maria Augusta Tremocoldi, Pedro Luiz Rosalen, Marcelo Franchin, Adna Prado Massarioli, Carina Denny, Érica Regina Daiuto, Jonas Augusto Rizzato Paschoal, Priscilla Siqueira Melo, Severino Matias de Alencar
This study aimed to evaluate the antioxidant, anti-inflammatory, and cytotoxic properties and phenolic composition of peel and seed of avocado varieties Hass and Fuerte using green solvents. Ethanol soluble compounds were identified in peel and seed of both varieties using HPLC-MS/MS and quantified using HPLC-DAD. Agro-industrial by-products of both varieties exhibited high radical scavenging activity against synthetic free radicals (DPPH and ABTS) and reactive oxygen species (peroxyl, superoxide, and hypochlorous acid) and high ability to reduce Fe3+ to Fe2+...
2018: PloS One
Sandra Gonçalves, Joana Medronho, Elsa Moreira, Clara Grosso, Paula B Andrade, Patrícia Valentão, Anabela Romano
In this work we evaluated methanolic extracts from different parts (leaves, seeds, fruit peel and pulp) of Chamaerops humilis L. for antioxidant activity and the ability to inhibit enzymes linked with neurodegenerative diseases: acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and tyrosinase (TYR). The total content of phenolics, flavonoids and condensed tannins was also determined. The antioxidant and inhibitory activities of the extracts varied significantly according to the tissue. Seed extracts showed the greatest ability to scavenge DPPH (IC50 = 81...
February 2018: 3 Biotech
Ramón Pacheco-Ordaz, Marilena Antunes-Ricardo, Janet A Gutiérrez-Uribe, Gustavo A González-Aguilar
Mango (Mangifera indica cv. Ataulfo) peel contains bound phenolics that may be released by alkaline or acid hydrolysis and may be converted into less complex molecules. Free phenolics from mango cv. Ataulfo peel were obtained using a methanolic extraction, and their cellular antioxidant activity (CAA) and permeability were compared to those obtained for bound phenolics released by alkaline or acid hydrolysis. Gallic acid was found as a simple phenolic acid after alkaline hydrolysis along with mangiferin isomers and quercetin as aglycone and glycosides...
February 8, 2018: International Journal of Molecular Sciences
Wafaa Mostafa Elkady, Eman Ahmed Ibrahim, Mariam Hussein Gonaid, Farouk Kamel El Baz
Purpose: the non-edible fruit parts of Casimiroa edulis Llave et were evaluated for their active constituents and their potential as antioxidants, anti-inflammatory and antitumor activity. Methods: Fruits peel (FP) and seeds kernel (SK) of Casimiroa edulis Llave et Lex. were extracted successively with hexane and then methanol. Fatty acids were prepared from hexane extracts and identified by GC. Total flavonoid, phenolic acids and tannins contents in methanol extracts were determined by UV spectrophotometer and identified by HPLC...
December 2017: Advanced Pharmaceutical Bulletin
Forough Khajehei, Nikolaus Merkt, Wilhelm Claupein, Simone Graeff-Hoenninger
The aim of this study was to evaluate the quality characteristics of seven yacon (Smallanthus sonchifolius Poepp. and Endl.) cultivars (Cajamarca, Cusco, Early White, Late Red, Morado, New Zealand and Quinault) cultivated in the southwest of Germany. The following phyto/chemical traits were investigated in different yacon tuber parts (flesh, peel, and whole tubers): total dry matter, sugar content (fructose, glucose, and sucrose content), total phenolic content (TPC), total flavonoid content (TFC), 2,20-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, and Ferric reducing antioxidant power (FRAP)...
January 29, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Josephine Kschonsek, Theresa Wolfram, Annette Stöckl, Volker Böhm
Polyphenols are antioxidant ingredients in apples and are related to human health because of their free radical scavenging activities. The polyphenolic profiles of old and new apple cultivars (n = 15) were analysed using high-performance liquid chromatography (HPLC) with diode array detection (DAD). The in vitro antioxidant capacity was determined by total phenolic content (TPC) assay, hydrophilic trolox equivalent antioxidant capacity (H-TEAC) assay and hydrophilic oxygen radical absorbance (H-ORAC) assay...
January 24, 2018: Antioxidants (Basel, Switzerland)
Harold J Brody
No abstract text is available yet for this article.
January 22, 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
Marina Russo, Chiara Fanali, Giusy Tripodo, Paola Dugo, Rosario Muleo, Laura Dugo, Laura De Gara, Luigi Mondello
The analysis of pomegranate phenolic compounds belonging to different classes in different fruit parts was performed by high-performance liquid chromatography coupled with photodiode array and mass spectrometry detection. Two different separation methods were optimized for the analysis of anthocyanins and hydrolyzable tannins along with phenolic acids and flavonoids. Two C18 columns, core-shell and fully porous particle stationary phases, were used. The parameters for separation of phenolic compounds were optimized considering chromatographic resolution and analysis time...
January 19, 2018: Analytical and Bioanalytical Chemistry
Changcheng Tian, Xu Hui, Jing Li, Zhuo Han
BACKGROUND: Traditional view considers that the long-term stored Chenpi (dried citrus peel) has better health efficacies as compared with the fresh Chenpi, but the detailed mechanism remains obscure. RESULTS: The three water-soluble pectic polysaccharides (CPP1, CPP5 and CPP10) were obtained from one-year, five-year and ten-year Chenpi, respectively, and their physicochemical characteristics and intestinal immunomodulating activities were investigated and compared...
January 13, 2018: Journal of the Science of Food and Agriculture
Jing Miao, Xia Li, Chengcheng Zhao, Xiaoxiao Gao, Ying Wang, Wenyuan Gao
Chaenomeles is an important source for food industry in China, and its planting area is expanding year by year. This study was conducted to evaluate different varieties of Chaenomeles by comparing the chemical compositions, antioxidant activity and α-glucosidase inhibitory activity of peels and fleshes from twelve varieties of Chaenomeles. In the results, peels of Chaenomeles contain more phenolics, flavonoids and triterpenes, and show better antioxidant activity and α-glucosidase inhibitory activity than their fleshes...
May 15, 2018: Food Chemistry
Oladipupo Q Adiamo, Kashif Ghafoor, Fahad Al-Juhaimi, Elfadil E Babiker, Isam A Mohamed Ahmed
Aqueous extracts of orange peel and pulp with high total phenolic contents (TPC) (25.94 and 11.38 mg GAE/g extracts, respectively) were employed in the formulation of functional carrot juice and functional juices were treated using thermosonication process. In accordance with Box-Behnken design, 17 runs with 3 variables and 3 levels was applied for the optimization of the carrot juice with peel (CJPL) and pulp (CJPP) extracts. Overlaid contour plots prediction showed that the optimal conditions for CJPL were 125 mL juice volume, 6...
April 15, 2018: Food Chemistry
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