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Adsorptive removal of phosphate by the bimetallic hydroxide nanocomposites embedded in pomegranate peel

Journal of Environmental Sciences 2020年第5期32卷 189-198页

作者： Muhammad Akram Xing Xu Baoyu Gao Qinyan Yue Shang Yanan Rizwan Khan Muhammad Ali Inam Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityQingdao 266200China Department of Chemical Engineering Quaid-e-Awam University of EngineeringScience and Technology(QUEST)Naiuabshah 67480SindfiPakistan Institute of Environmental Sciences and Engineering(IESE) School of Civil and Environmental Engineering(SCEE)National University of Sciences and Technology(NUST)H-12 CampusIslamabad 44000Pakistan

This study aimed to fabricate new and effective material for the efficiency of phosphate *** types of adsorbent materials,the zirconium hydroxides embedded in pomegranate peel(Zr/peel)and zirconium-lanthanum hydroxides embedded in pomegranate peel(Zr-La/peel)were *** electronic microscopy(SEM),x-ray photoelectron spectroscopy(XPS)and x-ray diffraction(XRD)were evaluated to give insight into the physicochemical properties of these ***-La/peel exceeded the adsorption efficiency of Zr/peel adsorbents in batch adsorption experiments at the same pH *** peel as a host can strive to have a strong"shielding effect"to increase the steadiness of the entrenched Zr and La *** and Zr are hydroxide metals that emit many hydrogen ions during the hydrolysis reaction,which contribute to protonation and electrostatic *** highest adsorption capacity of La-Zr/peel for phosphate was calculated to be40.21 mg/g,and pseudo second-order equation is very well fitted for kinetic *** adsorption efficiency was reduced by an increase of *** the background of coexisting Cl-,little effect on adsorption efficiency was observed,while adsorption capacities were reduced by almost 20-30%with the coexistence of SO42-,NO3-and humic acid(HA).

关键词： Bimetallic hydroxides pomegranate peel Phosphate Adsorption

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Effect of pulsed ultrasound assisted extraction and aqueous acetone mixture on total hydrolysable tannins from pomegranate peel

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Food Bioscience 2022年第1期45卷 185-196页

作者： E.J.Rifna Madhuresh Dwivedi Department of Food Process Engineering National Institute of Technology RourkelaRourkelaOdishaIndia

pomegranate peels are disposed of as waste even though it is an eminent source of total hydrolysable tannins(THT)and possesses a great worth for *** present study was carried out with the hypothesis that pulsed system ultrasound-assisted extraction(PSUAE)technique optimization would aid in retaining high extract yield and THT recovery yield from pomegranate peel extract(PPE)with enhanced antioxidant *** extraction was performed at various conditions regarding solvent concentration(30-90% of acetone),solvent-feed ratio(10-30 mL/g),extraction time(10-20 min),and ultrasound amplitude(40-80%)for maximum extract yield,THT and antioxidant activity(AA).To model and optimize the process conditions tools namely response surface methodology(RSM)and artificial neural network(ANN)were *** solvent concentration,solvent-feed ratio,extraction time,and amplitude the optimal conditions attained with aid of RSM and ANN were:56%,26.5 mL/g,15 min,55%,and 45%,23 mL/g,15 min,50% *** extract yield and THT content determined with RSM and ANN optimized values were 51.2%,86.4 mg TAE/g,and 62%,98.1 mg TAE/g,*** mean square error value displayed the minimum and R^(2) exhibited maximum value in case of ANN compared to RSM *** significantly augmented the AA of PPE to 77.2±0.50% compared to 49.7±0.35% of conventional *** and HPLC analysis established that PPE produced from PSUAE contains a significant amount of THT compounds(gallic acid and tannic acid derivative).SEM elucidated that the sonication effect resulted in peel cell wall disruptions ensuing in elevated extraction of ***,this pulsed mode of ultrasound extraction could be regarded as an easy,cost-effective,and competent technique for the extraction of preferred natural THT from pomegranate peels that possess high prospective to be applied in food and nutraceutical formulations.

关键词： pomegranate peel Pulsed ultra-sonication Hydrolysable tannins Antioxidant activity ANN modeling

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Optimization of enzyme assisted extraction of polysaccharides from pomegranate peel by response surface methodology and their anti-oxidant potential

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Chinese Herbal Medicines 2018年第4期10卷 416-423页

作者： Yun Li Cai-ping Zhu Xi-chuan Zhai Yang Zhang Zhen Duan Jing-ru Sun College of Food Engineering and Nutrition Science Shaanxi Normal UniversityXi'an 710119China International Joint Research Center of Shaanxi Province for Food and Health Sciences Xi'an 710119China

Objective： To optimize the enzymatic extraction conditions of polysaccharides from pomegranate peel using response surface methodology（RSM）, and invest the anti-oxidant activity of pomegranate peel polysaccharide in vitro for seeking novel biological components used as pharmaceutical products and functional ***： Effects of enzymolysis time, ratio of water to raw material, and the dosage of cellulase on the extraction yield of pomegranate peel polysaccharide were fully examined by Box-Behnken design of RSM. DPPH radical scavenging activity, hydroxyl radicals scavenging activity, superoxide anion radical scavenging activity, and reducing power assay were measured by microplate ***： The optimal extraction conditions were as follows： enzymolysis temperature 55 °C, pH 5.0,enzymolysis time 88 min, ratio of water to raw material 22：1 mL/g, and dosage of cellulose 0.93%. Under the optimal extraction conditions, the yield of pomegranate peel polysaccharide was（22.31 ± 0.07）%,which was well matched with the predicted value 22.35% of the Box-Behnken design model. Also,pomegranate peel polysaccharide demonstrated appreciable anti-oxidant potential on DPPH（1,1-diphenyl-2-picrylhydrazyl） radical scavenging, hydroxyl radical scavenging, superoxide anion radical scavenging and reducing power in ***： An optimized enzymolysis assisted method was proposed for the extraction of pomegranate peel polysaccharide, which can be used as a good anti-oxidant.

关键词： anti-oxidant extraction polysaccharide pomegranate peel response surface methodology

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Study on Antioxidation Effect of Polyphenols from pomegranate peel in Vivo

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Agricultural Science & Technology 2016年第1期17卷 164-167页

作者：傅力徐佳包晓玮赵晓梅叶凯生命科学与食品科技学院韩山师范学院广东潮州521041 食品科学与药学学院新疆农业大学新疆乌鲁木齐830052 生物质能源研究所新疆农业科学院新疆乌鲁木齐830091

[Objective] The aim was to study the antioxidant effect of polyphenols from pomegranate peel in vivo. [Method] The Kunming rats were randomly divided into a control group, a low-dose group, a middle-dose group and a high-dose group,n=10; the protein content, the activities of the superoxide dismutase（SOD） and the glutathione peroxidase（GSH-PX）, the content of the maleic dialdehyde（MDA） in serum and liver tissue of the rats from different groups were determined. [Result]The polyphenols of pomegranate peel could increase protein content, activities of superoxide dismutase（SOD） and glutathione peroxidase（GSH-PX） in serum and liver tissue, and decrease the maleic dialdehyde（MDA） content simultaneously. [Conclusion] Polyphenols of pomegranate peel have strong antioxidant activity in vivo.

关键词： pomegranate peel Polyphenols Antioxidation In vivo

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Growth Performance and Digestibility in Karadi Lambs Receiving Different Levels of pomegranate peels

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Open Journal of Animal Sciences 2016年第1期6卷 16-23页

作者： Sarwar M. Sadq Dereen O. M. Ramzi Hozan J. Hamasalim Karzan A. Ahmed Department of Animal Production Faculty of Agricultural Sciences University of Sulaimani Kurdistan Iraq Department of Basic Science College of Veterinary Medicine University of Sualimani Kurdistan Iraq

The objective of current study was to determine the effect of different ratios of pomegranate peel in diets of Karadi lambs (0%, 1%, 2% or 4% as control, T1, T2 and T3, respectively) on body weight, total body gain, average daily gain, daily feed intake and apparent digestibility of nutrients. Sixteen Karadi male lambs weighing 23.29 ± 0.42 kg and 4.5-5 months old randomly divided into equally four treatment groups and individually penned for the period of 63 days. Results indicated that final body weight was significantly (P pomegranate peel (PP) as compared to lambs fed 4% PP. The best improvements in total feed intake, total gain, average daily gain and feed conversion ratio (FCR) in lambs fed 1% PP. The total dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), ash, nitrogen free extract (NFE) and metabolizable energy (ME) intake per (body weight0.75) increased (P pomegranate peel (PP);however, the crude fiber (CF) intake decreased in lambs fed 1% PP as compared to other treatments. While, the dry matter digestibility (DMD), crude protein digestibility (CPD), crude fiber digestibility (CFD) and nitrogen free extract digestibility (NFED) were significantly (P pomegranate peel in diet at the rate of 1% or 2% had significant effect on Karadi lambs performance and digestibility.

关键词： pomegranate peel Growth Performance Digestibility Karadi Lambs

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Optimization of Chromatographic Conditions for Detecting Ellagic Acid in pomegranate peels Using HPLC Method

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Agricultural Science & Technology 2012年第11期13卷 2400-2403页

作者：夏小龙彭蓉李树垠李端阳干霞白琦四川农业大学食品学院四川雅安625014

[Objective] This study aimed to optimize the chromatographic conditions for detecting ellagic acid in pomegranate peels using HPLC method. [Method] By using 0.2 mg/ml ellagic acid standard solution, on the basis of single-factor experiment and orthogonal experiment, chromatographic conditions （mobile phase ratio, flow rate, col- umn temperature） for detecting ellagic acid using HPLC were optimized. Based on the optimal chromatographic conditions, the ellagic acid content in experimental pomegranate peels was determined. [Resull] The optimal chromatographic conditions for detecting ellagic acid in pomegranate peels using HPLC method are： 1.2% phos- phoric acid：acetonitrile=85：15, column temperature of 35 ℃, and flow rate of 1.0 ml/min. The linear regression equation of ellagic acid is： y=2.9e＋0.6x＋4.4e＋5 （FF=9 999）. Ac- cording to the standard addition recovery test, the average recovery rate of ellagic acid is 98.20%, and RSD is 0.60%. Under above optimized chromatographic condi- tions, ellagic acid can be well separated from other interfering components in pomegranate peels, with shorter peak time and ideal effect, which is convenient for the detection in production practices. [Conclusion] This study laid the foundation for detecting ellagic acid in pomegranate peels using HPLC method.

关键词： pomegranate peel Etlagic acid Detection HPLC

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