Advances in Applied Chemistry and Biochemistry最新文献

Cytotoxic, Nitric Oxide and α-Glucosidase Inhibitory Activities of Biflavonoids from Garcinia prainiana King 黄藤黄酮的细胞毒、一氧化氮和α-葡萄糖苷酶抑制活性研究

Advances in Applied Chemistry and Biochemistry Pub Date : 2019-09-19 DOI: 10.33513/acbc/1901-08

Ocimum Scientific Publishers Pty Ltd

引用次数: 1

Effect of Storage on Antioxidant Activity and Bioactive Compound of Artocarpus heterophyllus J33 Rind Extract 贮藏对龙柏J33皮提取物抗氧化活性及生物活性成分的影响

Advances in Applied Chemistry and Biochemistry Pub Date : 2019-09-19 DOI: 10.33513/acbc/1901-07

Ocimum Scientific Publishers Pty Ltd

引用次数: 3

Ethnic Medicine and Ethnobotany Concept to Identify and Characterize New Polysaccharide-Based Drug from Arid and Semi-Arid Lands 民族医学和民族植物学概念:从干旱和半干旱地区鉴定和表征新的多糖类药物

Advances in Applied Chemistry and Biochemistry Pub Date : 2018-12-28 DOI: 10.33513/acbc/1801-05

N. Addoun, C. Delattre, Z. Boual, M. Hadj, P. Michaud, G. Pierre

引用次数: 2

Source-Separated Human Urine as Fuel for Microbial Fuel Cell: A Mini Review 来源分离的人尿作为微生物燃料电池的燃料:综述

Advances in Applied Chemistry and Biochemistry Pub Date : 2018-12-14 DOI: 10.33513/arms/1801-04

Ji Dai, Di Wu

引用次数: 1

Anti-Inflammatory and Antioxidant Effect of a D-galactose-rich Polysaccharide Extracted From Aloe vera Leaves 芦荟叶中富含d -半乳糖多糖的抗炎和抗氧化作用

Advances in Applied Chemistry and Biochemistry Pub Date : 2018-11-28 DOI: 10.33513/acbc/1801-03

Khalef Lefsih, Liticia Iboukhoulef, Emmanuel, Petit, Hana Benouatas, G. Pierre, C. Delattre

{"title":"Anti-Inflammatory and Antioxidant Effect of a D-galactose-rich Polysaccharide Extracted From Aloe vera Leaves","authors":"Khalef Lefsih, Liticia Iboukhoulef, Emmanuel, Petit, Hana Benouatas, G. Pierre, C. Delattre","doi":"10.33513/acbc/1801-03","DOIUrl":"https://doi.org/10.33513/acbc/1801-03","url":null,"abstract":"This work deals with studying the structure of a galactan extracted from Aloe vera Barbadensis Miller leaves harvested in Algeria (AVP). AVP was characterized by FTIR spectroscopy to identify functional groups confirming its polysaccharidic nature and analyzed by High-Pressure Anion Exchange Chromatography (HPAEC) to determine its composition as constituent monosaccharides. AVP was essentially composed of ᴅ-galactose (75.25%), ᴅ-glucuronic acid (10.82%), ʟ-rhamnose (6.52%), ʟ-arabinose (4.95%), ᴅ-galacturonic acid (2.16%) and ᴅ-mannose (0.28%). The total carbohydrate content (96.84%) was determined by a phenolsulfuric acid colorimetric assay and the protein content (2.85%) was measured by the Bradford method. The analysis of anti-inflammatory activity is based on the model of xylene-induced ear edema. The percentage reduction of ear edema obtained during the analysis of the anti-inflammatory activity of the AVP at doses 1%, 5% and 10% (m/v) are respectively 7.92%; 43.30% and 71.49%. The anti-inflammatory activity of AVP was found very close to that of pure Aloe vera Gel (AVG) used in Algerian medicine.","PeriodicalId":309439,"journal":{"name":"Advances in Applied Chemistry and Biochemistry","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116800105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Improved Quantification of Gibbsite in Bauxite Ores by Thermogravimetric Methods (TGA and DTG) 改进的热重法(TGA和DTG)定量铝土矿中三水铝石

Advances in Applied Chemistry and Biochemistry Pub Date : 2018-10-04 DOI: 10.33513/acbc/1801-02

C. M. Earnest, K. Gann, Britney, Stong

引用次数: 6

In-Vitro 5-Lipoxygenase Inhibiting Activity of Selected Malaysian Plants and Isolation of Constituents 马来西亚植物5-脂氧合酶体外抑制活性及成分分离

Advances in Applied Chemistry and Biochemistry Pub Date : 2018-10-04 DOI: 10.33513/acbc/1801-01

M. Daud, M. Jabit, S. Khamis, D. Ali, K. Shaari

{"title":"In-Vitro 5-Lipoxygenase Inhibiting Activity of Selected Malaysian Plants and Isolation of Constituents","authors":"M. Daud, M. Jabit, S. Khamis, D. Ali, K. Shaari","doi":"10.33513/acbc/1801-01","DOIUrl":"https://doi.org/10.33513/acbc/1801-01","url":null,"abstract":"5-Lipoxygenase (5-LO) is the key enzyme in biosynthesis of inflammatory mediators known as leukotrienes which are responsible for asthma, allergic inflammation and innate immunity. This paper reports the evaluation of 30 species of Malaysian plant extracts potential in inhibiting 5-LO activity. Five plant extracts exhibited >80% inhibition against 5-LO activity which include Phyllanthus watsonii, Euphorbia hirta, Anacardium occidentale, Acalypha wilkensiana and Piper betle. Nine plant extracts exhibited moderate value of inhibition (79-40%), while sixteen others exhibited <40% inhibition. From the screening work via inhibition of 5-LO activity, P. watsonii showed the highest inhibition with value of 97.3%, followed by E. hirta with 90.9% inhibition. Both plant extracts were further fractioned using organic solvent which include Dichloromethane (DCM), Ethyl Acetate (EA) and Butanol (BuOH) for evaluation of their inhibiting effects on 5-LO activity. For P. watsonii, DCM fraction exhibited the highest value with 75% inhibition, while for E. hirta, EA fraction exhibited the highest value of 72.5% inhibition. Both active fractions were further subjected to isolation and purification work in order to identify the major compounds. Subsequently, four major compounds managed to be isolated and purified which further identified as quercetin-3-O-rhamnoside (E1), myricetin-3-O-rhamnoside (E2), 26-nor-D: A-friedoolean-14-en-3β-ol (PW1) and glochidonol (PW2) using spectroscopic technique and their data comparison with literature.","PeriodicalId":309439,"journal":{"name":"Advances in Applied Chemistry and Biochemistry","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122935307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal Analysis in the Alumina Industry. Part I: Measurements, Observations and Instrumentation 氧化铝工业的热分析。第一部分:测量、观察和仪器

Advances in Applied Chemistry and Biochemistry Pub Date : 1900-01-01 DOI: 10.33513/acbc/1901-06

C. M. Earnest

{"title":"Thermal Analysis in the Alumina Industry. Part I: Measurements, Observations and Instrumentation","authors":"C. M. Earnest","doi":"10.33513/acbc/1901-06","DOIUrl":"https://doi.org/10.33513/acbc/1901-06","url":null,"abstract":"In the work presented here, examples of the thermal analysis of bauxites for the recognition and analysis of both aluminous bearing minerals and other minerals which are presented. In addition to this, samples obtained from Bayer process production facilities were studied by the techniques of DTA, DSC, TG (TGA) and DTG for both product and by-product (red mud). Throughout the manuscript, a great deal of information is included regarding the thermal analysis instrumentation and its use for such mineral mixtures which may have special requirements for achieving good results. Particular interest is given to the operator choices while using DSC, DTA, and TGA/DTG for the analysis of samples with overlapping transitions. The liberation and elimination of water vapor arising from the dehydroxylation of selected components in product alumina, red mud by-product and bauxite raw material are also discussed. This paper will present the DTA, DSC, TGA and DTG analysis of two Jamaican bauxite ores, a bauxite specimen from northern Australia (Weipa), a Western Australia (Darling Range) bauxite ore, a red mud specimen and a product alumina from the Bayer Process.","PeriodicalId":309439,"journal":{"name":"Advances in Applied Chemistry and Biochemistry","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122436840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1