نتایج جستجو برای: acid green 25

تعداد نتایج: 1195902  

2017
M. Guadalupe Rojas Juan A. Morales-Ramos

Nezara viridula adult coloration can vary, including a rare orange-colored type (i.e., N. viridula f. aurantiaca). In November 2015, three Nezara viridula males displaying orange coloration were found in an established colony in Stoneville, MS. The objectives of this study were to determine if alleles of these orange types conformed to the allele characteristics previously reported for N. virid...

Nasrin Aghel, Abdolhosein Moghbel, Ahmad Farjzadeh, Homayoon Agheli, Nafiseh Raisi,

Background: Compounds present in both green and black teas have been shown to inhibit the growth and activity of bacteria associated with mouth infections. The aim of this study was to assess the effects of green tea leaves extract on the aerobic mouth bacterial load. Methods: A total of 25 volunteer female students, aged 20-25 years, were selected and then evaluated by green tea extract and ...

Journal: :Biological & pharmaceutical bulletin 2009
Hiroshi Izuta Yukimi Narahara Masamitsu Shimazawa Satoshi Mishima Shin-ichi Kondo Hideaki Hara

The aim of this work was to investigate the antioxidant property of honeybee products and their constituents using an ESR method. Antioxidative activity was evaluated as the scavenging activity of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical. The DPPH radical scavenging activities, in descending order, were: ethanol extract of Chinese red propolis>ethanol extract of Brazilian green propolis>wat...

Journal: :Nigerian Journal of Technological Development 2023

Acid corrosion of steel and its associated financial material costs are serious challenges to the chemical industry, protecting these alloys through use effective inhibitors is imperative. In this study, inhibition mild in 1M HCl media using water ethanol extracts Spondias mombin leaves was investigated via weight loss technique, electrochemical impedance spectroscopy (EIS) potentiodynamic pola...

زهرا پاک کیش, , مجید راحمی, ,

Green skin (hull) of pistachio fruits is a barrier against the penetration of fungi and insects into the kernel of pistachio. Splitting of husk facilitates the entry of fungi and infection of pistachio kernels during the harvest. So far no effective way has been reported for controlling this problem. To evaluate the effects of gibberellic acid on hull spliting the present research was conducted...

Journal: :journal of sciences, islamic republic of iran 2014
s. rezayati s. sajjadifar

a mild and green method has been developed for the preparation of coumarins derivatives through the one-pot reactions. in our study,various phenols and ethyl acetoacetate compound in which we used silica-supported boron sulfonic acid [sio2/b(so4h)3] as a new, highly efficient and tri-functional inorganic brønsted acid catalyst were processed under solvent-free condition and thermal. the catalys...

Journal: :Chemical Industry & Chemical Engineering Quarterly 2022

This work evaluated the process for heptaldehyde, undecylenic acid and methyl undecenoate production from castor oil, ester of oil ricinoleic acid. Experiments were performed in a continuous pilot-plant scale pyrolysis reactor. Those are very important green chemical products that might be obtained by thermal cracking oil. Transesterification produces ricinoleate its generates heptaldehyde. The...

Journal: :journal of sciences, islamic republic of iran 2016
s. rezayati m. mehmannavaz e. salehi sh. haghi r. hajinasiri

phospho sulfonic acid (psa) synthesized as an environmentally safe and efficient solid acid catalyst, and it used for the synthesis of several 2-disubstituted benzimidazoles, 2-substituted benzoxazoles, and 2-substituted quinoxalines in ethanol as a green solvent at ambient temperature is described. (i) a very simple, green and efficient procedure for the synthesis of benzimidazole and also benz...

Journal: :مجله تغذیه و امنیت غذایی 0
rozita golvardzadeh department of food science, islamic azad university, yazd, iran seyed ali yasini ardakani department of food science, islamic azad university, yazd, iran

background: the current study tried to investigate the antioxidant and anti-bacterial effects of green tea and grape seed extract (with a volume of 2%) on durability of tilapia packed in polyethylene bags, which were kept in cool temperature of 4±1 °c. methods: prepared fish were divided into 3 batches: 2 batches were treated by dipping for 30 min in ethanolic of green tea extract (2% v/v) and ...

Journal: :شیلات 0
پروا سفری کارشناس ارشد گروه فرآوری محصولات شیلاتی، دانشکدة علوم دریایی، دانشگاه تربیت مدرس، نور مسعود رضایی استاد گروه فرآوری محصولات شیلاتی، دانشکدة علوم دریایی، دانشگاه تربیت مدرس، دانشکدة علوم دریایی تربیت مدرس، شهرستان نور امیررضا شویک لو استادیار مؤسسة تحقیقات علوم دامی کشور آریا باباخانی استادیار گروه شیلات، دانشکدة منابع طبیعی صومعه سرا، دانشگاه گیلان

chaetomorpha sp is one of the persian gulf green algae which can be a marine source of natural antioxidants such as polyphenols. industrial and economic development of these materials is influenced by effective extraction and application methods. microwave-assisted extraction (mae) and ultrasound-assisted extraction (uae) are novel techniques which have a potential to apply in laboratory with a...

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