نتایج جستجو برای: citric acid

تعداد نتایج: 747643  

Journal: :The journal of contemporary dental practice 2013
Fabio Renato Manzolli Leite Gustavo Giacomelli Nascimento Elza Regina Manzolli Leite Amauri Antiquera Leite Josá Eduardo Cezar Sampaio

OBJECTIVE This study aims to compare the clot stabilization on root surfaces conditioned with citric acid and ethylenediamine-tetraacetic acid (EDTA). MATERIALS AND METHODS Scaled root samples (n = 100) were set in fve groups: group I-control group (saline solution); group II (24% EDTA); group III (25% citric acid); group IV (EDTA + citric acid); group V (citric acid + EDTA). Fifty samples we...

صمدانی لنگرودی, نرگس, طاهری, فاطمه, مهرانی, سپیده,

The aim of this study was to investigate the possibility of using rice bran as a natural adsorbent for the removal of citric acid from water and the effect of temperature, time, initial concentration of adsorbate and adsorbent concentration on the adsorption process. Fitting experimental data was performed using several adsorption models. Also, the thermodynamics and kinetics of adsorption have...

Journal: :jundishapur journal of microbiology 0
masoud yadegary department of chemistry, tehran branch, science and research islamic azad university, tehran, ir iran adel hamidi department of microbiology, razi vaccine and serum research institute, arak, ir iran seyed abolhasan alavi department of chemistry engineering, tehran branch, science and research islamic azad university, tehran, ir iran ebrahim khodaverdi young researchers and elite club, karaj branch, islamic azad university, karaj, ir iran hamid yahaghi department of microbiology, science and research branch, islamic azad university, damghan, ir iran sara sattari department of microbiology, science and research branch, islamic azad university, tehran, ir iran

background citric acid is produced in insignificant quantities in iran. despite its great range of utilizations, and from another aspect, high level of production of sugarcane bagasse, the related problems arising from maintenance of this acid require thinking of a measure in the direction of its optimal usage and production. objectives the objective of the present study is to obtain effectual ...

Keivan Abdy, Parviz Tajik

For evaluation of citric acid and citrate effects on bovine epididymal protoplasmic droplets, fifty bovine testes were collected in the October 2007 till June 2008 from Urmia slaughterhouse and transported to the laboratory in a cool container filled with 5 °C ice pack. Caudal epididymis was incised and sperm cells were put into Petri dishes containing hams f10 media with 10% fetal calf serum (...

2014
Kishore Kumar Hotha Tejashkumar Patel Swapan Roychowdhury Veerappan Subramanian

There were several techniques determined for the analysis of citrate and citric acid mixtures in the pharmaceutical dosage forms. Titration methods, photometric and ion chromatographic methods were used for their determination. These methods will restrict too many factors where the accurate quantification of citrate and citric acid is extremely challenging. Citric acid is the natural flavor use...

Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of Cysteine, Ascorbic acid, citric acid, kojic acid and glycine at two different pH (6 and 7) in  hawthorn. Me...

ژورنال: پیاورد سلامت 2021
Aalmomen, Mehdi, Khashei Varnamkhasti, Khalil, Rouhi, Leila,

Background and Aim: Colorectal adenocarcinoma is one of the common causes of death due to weak response to common therapies. In this study, the effect of citric acid on bioavailability and apoptosis of the human colorectal adenocarcinoma cell line (HT29) was examined. Citric acid is a naturally organic acid that commonly found in citrus and is considered as a physiological inhibitor of enzymes ...

Journal: :journal of ornamental plants 2014
farnaz sheikh seyed hossein neamati navid vahdati ali dolatkhahi

the postharvest life of cut eustoma grandiflorum flowers is limited in open flowers. therefore a factorial experiment based on a completely randomized design with ascorbic acid (asa) at 4 levels (0, 100, 200, 300mg l-1) and citric acid (ca) at 3 levels (0, 100, 200 mg l-1) with 3 replications and 3 samples for each replications, was conducted for this purpose. results indicated that a significa...

Journal: :Frontiers in plant science 2016
Longxing Hu Zhifei Zhang Zuoxiang Xiang Zhijian Yang

Citric acid may be involved in plant response to high temperature. The objective of this study was to investigate whether exogenous citric acid could improve heat tolerance in a cool-season turfgrass species, tall fescue (Lolium arundinaceum), and to determine the physiological mechanisms of citric acid effects on heat stress tolerance. The grasses were subjected to four citric acid levels (0, ...

Journal: :Poultry science 2009
R Chowdhury K M S Islam M J Khan M R Karim M N Haque M Khatun G M Pesti

The aim of this study was to determine the effect of the supplementation of an organic acid (citric acid), antibiotic growth promoter (avilamycin), and their combination for a period of 35 d on the growth, feed efficiency, carcass yield, tibia ash, and immune status of broilers. One hundred sixty 1-d-old broiler chicks (Hubbard Classic) were randomly distributed into 4 groups with 4 replicate c...

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