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https://www.readbyqxmd.com/read/28071019/influence-of-different-extraction-conditions-on-antioxidant-properties-of-soursop-peel
#1
Wei Zin Lee, Sui Kiat Chang, Hock Eng Khoo, Chiaw Mei Sia, Hip Seng Yim
BACKGROUND: Soursop is a healthy fruit. Peels form about 20% of the soursop fruit and are usually discarded as waste product. With a view to utilizing soursop peel as a source of valuable compounds, this study aimed to investigate the influence of different extraction conditions on total phenolic content (TPC) and antioxidant capacity (AC) of soursop (Annona muricata L.) peel. METHODS: Different ethanol concentrations (20-100%, v/v), extraction temperatures (25- 60°C), and extraction time (1-5 h) were tested...
October 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28070259/phenol-removal-from-aqueous-environment-by-adsorption-onto-pomegranate-peel-carbon
#2
Mojtaba Afsharnia, Mahdi Saeidi, Amin Zarei, Mohammad Reza Narooie, Hamed Biglari
INTRODUCTION: Phenol and its derivatives are the most common poisonous compounds which are stable in aqueous media and lead to many health issues. In this study, application of the carbon resulted from pomegranate peel is investigated in removal of phenol by adsorption method. METHODS: to perform this cross-sectional study, first, samples of phenol with concentrations of 10 to 100 mg/L were prepared for six months in 2016. Then, the impacts of parameters such as pH, adsorbent dosage, contact time, and initial concentration of phenol in adsorption process were investigated independently in Gonabad Chemistry Lab using a spectrophotometer at 505 nm as the wavelength...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28035161/composition-bioactive-compounds-and-antioxidant-activity-of-common-indian-fruits-and-vegetables
#3
Jatinder Pal Singh, Amritpal Kaur, Khetan Shevkani, Narpinder Singh
The present work was undertaken to evaluate the chemical composition (proximate, minerals and dietary fibre), colour parameters, antioxidant activity and polyphenol profiles of different fruits (pomegranate, kinnow, mango, banana, jambolan, grapes and sapodilla) and vegetables (beetroot, brinjal, orange carrot, bitter gourd, mentha and spinach). The amount of insoluble dietary fibre was higher than soluble dietary fibre for all fruits and vegetables. Vegetables showed superior mineral composition (higher amounts of K, Ca and Fe) as compared to fruits...
November 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27979233/total-phenolic-contents-antioxidant-activities-and-bioactive-ingredients-of-juices-from-pomegranate-cultivars-worldwide
#4
REVIEW
Zeynep Kalaycıoğlu, F Bedia Erim
Numerous recent scientific publications investigating the health benefits of pomegranate juice have greatly increased consumer interest in this fruit. The primary cause of the positive health effect of pomegranate is the unique antioxidant activity of this fruit. As a result of the increased attention given to pomegranate, the number of countries producing pomegranate has increased and new cultivars are appearing. The purpose of this review is to quantitatively establish the antioxidant activities, the total phenolic contents which are highly correlated to antioxidant activities, and the other important ingredients of pomegranate juices obtained from cultivars of different regions...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27979149/characterization-phenolic-compounds-and-functional-properties-of-cucumis-melo-l-peels
#5
Sana Mallek-Ayadi, Neila Bahloul, Nabil Kechaou
The aim of this work is to investigate the phytochemical composition and functional properties of the melon peels, considered as a by-product. Melon peels (maazoun cultivar) are rich in nutritional ingredients such as carbohydrates (69.77%) and ash (3.67%). They contain significant amounts of total dietary fibers (41.69%) and antioxidants as polyphenols and flavonoids (332mg/100g extract and 95.46mg/100g extract, respectively). The identification and the quantification of the phenolic compounds of melon peels were performed by high performance liquid chromatography apparatus...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27939964/sustainable-biobutanol-production-from-pineapple-waste-by-using-clostridium-acetobutylicum-b-527-drying-kinetics-study
#6
Manisha A Khedkar, Pranhita R Nimbalkar, Shashank G Gaikwad, Prakash V Chavan, Sandip B Bankar
Present investigation explores the use of pineapple peel, a food industry waste, for acetone-butanol-ethanol (ABE) production using Clostridium acetobutylicum B 527. Proximate analysis of pineapple peel shows that it contains 35% cellulose, 19% hemicellulose, and 16% lignin on dry basis. Drying experiments on pineapple peel waste were carried out in the temperature range of 60-120°C and experimental drying data was modeled using moisture diffusion control model to study its effect on ABE production. The production of ABE was further accomplished via acid hydrolysis, detoxification, and fermentation process...
February 2017: Bioresource Technology
https://www.readbyqxmd.com/read/27934289/schistosomicidal-activity-of-alkyl-phenols-from-the-cashew-anacardium-occidentale-against-schistosoma-mansoni-adult-worms
#7
Tavane A Alvarenga, Pollyanna F de Oliveira, Julia M de Souza, Denise C Tavares, Márcio L Andrade E Silva, Wilson R Cunha, Milton Groppo, Ana H Januário, Lizandra G Magalhães, Patrícia M Pauletti
Bioassay-guided study of the ethanol extract from the cashew Anacardium occidentale furnished cardol triene (1), cardol diene (2), anacardic acid triene (3), cardol monoene (4), anacardic acid diene (5), 2-methylcardol triene (6), and 2-methylcardol diene (7). 1D- and 2D-NMR experiments and HRMS analysis confirmed the structures of compounds 1-7. Compounds 2 and 7 were active against Schistosoma mansoni adult worms in vitro, with LC50 values of 32.2 and 14.5 μM and selectivity indices of 6.1 and 21.2, respectively...
November 23, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27904413/influence-of-yellow-light-emitting-diodes-at-590-nm-on-storage-of-apple-tomato-and-bell-pepper-fruit
#8
Doris Kokalj, Janez Hribar, Blaž Cigić, Emil Zlatić, Lea Demšar, Lovro Sinkovič, Helena Šircelj, Grega Bizjak, Rajko Vidrih
The objective of this study is to investigate the effects of irradiation from light-emitting diodes (LEDs) on several fruits during storage. To improve storage and increase the contents of some bioactive compounds, apple, tomato and red bell pepper fruits were exposed to yellow light emitted from the diodes at 590 nm. The contents of ascorbic acid, total phenolics, total flavonoids and several pigments were investigated, along with the antioxidant potential. The colour parameters (L*, a* and b*) and firmness of the fruit were also determined...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27876922/anthelmintic-potential-of-calotropis-procera-azadirachta-indica-and-punica-granatum-against-gastrothylax-indicus
#9
Rama Aggarwal, Kiranjeet Kaur, Mansi Suri, Upma Bagai
Anthelmintic activity of both ethanolic and aqueous extracts of Calotropis procera flowers, Azadirachta indica leaves and Punica granatum fruit peel in comparison with albendazole was evaluated through in vitro studies by the worm motility inhibition assay. Significant anthelmintic effects (p < 0.0005) were observed on live Gastrothylax indicus worm as evident from their mortality at 4 h post exposure to both ethanolic and aqueous extracts. Phytochemical analysis of extracts revealed the presence of phenols, alkaloids, saponins, tannins, flavonoids, steroids and triterpenoids...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27855922/chemical-characterization-and-protective-effect-of-the-bactris-setosa-mart-fruit-against-oxidative-nitrosative-stress
#10
Joana Schuelter Boeing, Daniela Ribeiro, Renan Campos Chisté, Jesuí Vergílio Visentainer, Vera Marisa Costa, Marisa Freitas, Eduarda Fernandes
Bactris setosa Mart. is a Brazilian tree from the palm family (Arecaceae), whose fruits are scientifically underexploited. Here, we report, for the first time, the identification and quantification of phenolic compounds and carotenoids in the pulp, seed, and peel extracts of B. setosa fruits and their in vitro biological activity. The anthocyanins cyanidin deoxyhexose hexoside and cyanidin hexoside and other phenolic compounds were detected mainly in the peel but also in the pulp extracts. All-trans-lutein was the unique carotenoid identified and quantified, and only in the peel extract...
April 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27812831/carotenoids-phenolic-profile-mineral-content-and-antioxidant-properties-in-flesh-and-peel-of-prunus-persica-fruits-during-two-maturation-stages
#11
Samia Dabbou, Samira Maatallah, Antonella Castagna, Monia Guizani, Wala Sghaeir, Hichem Hajlaloui, Annamaria Ranieri
Carotenoids and phenolic profile, antioxidant activity as well as concentrations of selected macronutrients (K, N, Mg, Ca and Na) and micronutrients (Zn, Cu and Mn) in flesh and peel of peach fruit were recorded at two harvest dates. Predominant mineral was potassium, followed by calcium, magnesium and sodium. The concentration of most micronutrients was greater in the peel than in the flesh especially in early season. The concentration of most elements in flesh and peel decreased during fruit maturation. Total carotenoids content varied with respect to the cultivar...
November 3, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27812364/transcriptome-dynamics-in-mango-fruit-peel-reveals-mechanisms-of-chilling-stress
#12
Velu Sivankalyani, Noa Sela, Oleg Feygenberg, Hanita Zemach, Dalia Maurer, Noam Alkan
Cold storage is considered the most effective method for prolonging fresh produce storage. However, subtropical fruit is sensitive to cold. Symptoms of chilling injury (CI) in mango include red and black spots that start from discolored lenticels and develop into pitting. The response of 'Keitt' mango fruit to chilling stress was monitored by transcriptomic, physiological, and microscopic analyses. Transcriptomic changes in the mango fruit peel were evaluated during optimal (12°C) and suboptimal (5°C) cold storage...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27794587/phenolic-compounds-of-potato-peel-extracts-their-antioxidant-activity-and-protection-against-human-enteric-viruses
#13
Norma Patricia Silva-Beltrán, Cristóbal Chaidez-Quiroz, Osvaldo López-Cuevas, Saul Ruiz-Cruz, Marco A López-Mata, Carmen Lizette Del-Toro-Sánchez, Enrique Marquez-Rios, José de Jesús Ornelas-Paz
Potato peels (PP) contain several bioactive compounds. These compounds are known to provide human health benefits including antioxidant and antimicrobial properties. In addition, these compounds could have effects on human enteric viruses that have not yet been reported. The objective of the present study was to evaluate the phenolic composition, antioxidant properties in the acidified ethanol extract (AEE) and water extract (WE) of PP, and the antiviral effects on the inhibition of Av-05 and MS2 bacteriophages, which were used as human enteric viral surrogates...
October 28, 2016: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27776287/antimicrobial-effect-of-the-tunisian-nana-variety-punica-granatum-l-extracts-against-salmonella-enterica-serovars-kentucky-and-enteritidis-isolated-from-chicken-meat-and-phenolic-composition-of-its-peel-extract
#14
Ben Ajmia Wafa, Mohamed Makni, Sonda Ammar, Lamia Khannous, Amal Ben Hassana, Mohamed Bouaziz, Nour Eddine Es-Safi, Radhouane Gdoura
Punica granatum L. is widely recognized for its potency against a broad spectrum of bacterial pathogens. The purpose of this study was to explore the inhibitory and the bactericidal activities of Punica granatum against Salmonella strains. The effect of extracts obtained from different parts (peels, seeds, juice and flowers) of pomegranate and using different solvents against Salmonella enterica serovars Kentucky and Enteritidis isolated from chicken meat was thus investigated. Salmonella strains were identified with the standard API-20E system and confirmed by real time PCR...
January 16, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27765983/characterization-of-nutrients-amino-acids-polyphenols-and-antioxidant-activity-of-ridge-gourd-luffa-acutangula-peel
#15
M P Swetha, S P Muthukumar
Ridge gourd (Luffa acutangula) is consumed as a vegetable after peeling off the skin which is a domestic waste. Luffa acutangula peel (LAP) was observed to be a good source of fiber (20.6 %) and minerals (7.7 %). Amino acid analysis revealed presence of the highest content of Carnosine followed by aspartic acid and aminoadipic acid. Antioxidant activity of different extracts showed that ethyl acetate extract was more potent when compared to other solvent extractions. It exhibited a significant amount of phenolic acids like p-coumaric acid (68...
July 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27764241/campomanesia-adamantium-peel-extract-in-antidiarrheal-activity-the-ability-of-inhibition-of-heat-stable-enterotoxin-by-polyphenols
#16
Caroline Honaiser Lescano, Ivan Pires de Oliveira, Tiago Zaminelli, Débora da Silva Baldivia, Luan Ramos da Silva, Mauro Napolitano, Camila Bitencourt Mendes Silvério, Nilton Lincopan, Eliana Janet Sanjinez-Argandoña
Campomanesia adamantium (Myrtaceae) is a medicinal plant distributed in Brazilian Cerrado. Different parts of this plant are used in popular medicine for treatment of several diseases like fever, diarrhea, hypercholesterolemia and rheumatism. The aim of this work was to evaluate the inhibition of heat-stable enterotoxin type A (STa) by gallic acid present in the peel of C. adamantium fruit and assays to assess the antidiarrheal activity, anti-inflammatory and cytotoxic properties of peel extract using the T84 cell line model...
2016: PloS One
https://www.readbyqxmd.com/read/27733113/gene-expression-and-metabolism-preceding-soft-scald-a-chilling-injury-of-honeycrisp-apple-fruit
#17
Rachel S Leisso, Nigel E Gapper, James P Mattheis, Nathanael L Sullivan, Christopher B Watkins, James J Giovannoni, Robert J Schaffer, Jason W Johnston, Ines Hanrahan, Maarten L A T M Hertog, Bart M Nicolaï, David R Rudell
BACKGROUND: 'Honeycrisp' is an apple cultivar that is susceptible to soft scald, a chilling injury expressed as necrotic patches on the peel. Improved understanding of metabolism associated with the disorder would improve our understanding of soft scald and contribute to developing more effective management strategies for apple storage. It was expected that specific gene expression and specific metabolite levels in the peel would be linked with soft scald risk at harvest and/or specific time points during cold storage...
October 12, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27706672/evaluation-of-four-protein-extraction-methods-for-proteomic-analysis-of-mango-peel
#18
D J Liao, X P Lu, H S Chen, Y Lu, Z Y Mo
The peel of mango (Mangifera indica L.) is a special plant tissue that contains many compounds that interfere with protein extraction. A successful separation with Two-dimensional electrophoresis (2-DE) is the key step for proteomic analysis. To evaluate the efficiencies of mango peel protein extraction for 2-DE, four extraction methods were tested: 1) 2-D clean-up kit, 2) trichloroacetic acid/acetone precipitation, 3) phenol extraction, 4) phenol with methanol/ammonium acetate precipitation. The results showed that the phenol with methanol/ammonium acetate precipitation produced the best quality protein extraction and separation...
August 30, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27664664/inhibitory-effect-of-chlorogenic-acid-on-digestion-of-potato-starch
#19
Zida Karim, Melvin Holmes, Caroline Orfila
The effect of the chlorogenic acid isomer 5-O-caffeoylquinic acid (5-CQA) on digestion of potato starch by porcine pancreatic alpha amylase (PPAA) was investigated using isolated starch and cooked potato tuber as substrates. In vitro digestion was performed on five varieties of potato with varying phenolic content. Co- and pre-incubation of PPAA with 5-CQA significantly reduced PPAA activity in a dose dependent manner with an IC50 value of about 2mgmL(-1). Lineweaver-Burk plots indicated that 5-CQA exerts a mixed type inhibition as km increased and Vmax decreased...
February 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27659491/low-accumulation-of-chlorogenic-acids-represses-reddening-during-flesh-browning-in-japanese-peach-okayama-peh7
#20
Naoki Yokotani, Misugi Uraji, Miyuki Hara, Seisuke Hihara, Tadashi Hatanaka, Kenji Oda
In peaches, fruit flesh browns unattractively after peeling or cutting. A recently developed cultivar, Okayama PEH7, was distinct from other Japanese cultivars, including Okayama PEH8, with respect to its reduced browning potential. Homogenate prepared from Okayama PEH7 flesh had significantly less reddening during the browning reaction. Okayama PEH7 had less soluble phenolic compounds and higher polyphenol oxidase activity than Okayama PEH8. Reduced browning was observed even when phenols prepared from Okayama PEH7 were incubated with crude extract from Okayama PEH8, suggesting that phenols lower the browning potential of Okayama PEH7...
January 2017: Bioscience, Biotechnology, and Biochemistry
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