نتایج جستجو برای: ultrasound power

تعداد نتایج: 592500  

Journal: :journal of agricultural science and technology 2015
b. hosseinzadeh samani m. h. khoshtaghaza s. minaee s. abbasi

this study aimed to examine the effectiveness of combined microwave-ultrasonic pasteurization system on escherichia coli and vitamin c content in sour cherry juice (scj). based on the findings, microwave output power, ultrasound power, and ultrasonic exposure time as well as the microwave-induced temperature were the most effective factors in reducing e. coli and vitamin c content. in addition,...

Ultrasound has been widely employed in food industry, while some of its working parameters are usually neglected to be described in its application, which caused the difficulty of reproducing and comparing the results obtained by different groups. So it is definitely not sufficient to simply state the ultrasound conditions such as ultrasound power, frequency and t...

Journal: :فرآوری و نگهداری مواد غذایی 0
شادی بلوریان استادیار، گروه پژوهشی افزودنیهای غذایی پژوهشکده علوم و فناوری مواد غذایی صفیه خلیلیان دانشجوی دکتری مهندسی علوم و صنایع غذایی، دانشگاه کشاورزی و منابع طبیعی گرگان محمد خلیلیان دانشجوی کارشناسی ارشد مهندسی علوم و صنایع غذایی، دانشگاه فردوسی مشهد

in this study, independent variables were time (1-15 min0, temperature (25-45) and power of ultrasound. results showed that time of ultrasound was linear (p

Since the rose water is used in food, pharmaceutical, and cosmetic products, its microbiological control is necessary. Conventional pasteurization methods cause undesirable changes in taste, smell, medicinal properties and nutritional value with decreasing the amount of essential oil, because of high temperatures. In this study, the effects of the microwave power, temperature, ultrasound power,...

Since the rose water is used in food, pharmaceutical, and cosmetic products, its microbiological control is necessary. Conventional pasteurization methods cause undesirable changes in taste, smell, medicinal properties and nutritional value with decreasing the amount of essential oil, because of high temperatures. In this study, the effects of the microwave power, temperature, ultrasound power,...

Journal: :تحقیقات مهندسی کشاورزی 0
مهدی کریمی عضو هیئت علمی بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی هاشم پورآذرنگ استاد دانشگاه فردوسی مشهد علی مرتضوی استاد دانشگاه فردوسی مشهد مهدی نصیری دانشیار دانشگاه فردوسی مشهد.

starch is a versatile and useful polymer having physicochemical properties that can be altered by chemicals or enzymatic modification and/or physical treatment. native starches possess many disadvantages that decrease their application and industrial use, but could be modified to obtain the desired properties to meet industrial needs for a wide range of starch applications. physically modified ...

This research reported a new method of removal of Pb+2from water by using a nano zero valent iron (nZVI) assisted ultrasonic wave. At first, nZVI was synthesized by an ultrasound assisted method. Particles morphology and surface composition were characterized by FESEM, XRD, and EDX. The XRD patterns showed that the crystallinity of the nZVI prepared using ultrasonic conditions was hi...

Journal: یافته 2009

Akbari A1 1. Assistant Professor, Department of Physiotherapy, Faculty of Medicine, Zahedan University of Medical Sciences Abstract Background: Shoulder pain is the third most prevalent cause of musculoskeletal disorder after low back and cervical pains. Most of the shoulder symptoms are attributed to the rotator cuff. The objective of this study was to compare the effects of low-power ...

B Yosefian H Mazdarani M Mokhtari-Diezaji

In spite of wide spread investigations performed,the biological effects of ultrasound waves,specially on DNA molecule has not been fully understood.since any alteration in DNA molecule can lead to chromosome abnormality,the study of clastogenic effects of ultrasound is important.in this study,the effect of 1MHz frequency continuous waves with the power of 0.5,1 and 1.5 watts on G human lymphocy...

NASIM KASHEF, QORBAN BEHZADIAN NEJAD ,

Objective: The effect of ceftazidime on Pseudomonas aeruginosa, with or without application of 1 MHz therapeutic ultrasound, was studied. Method: An aqueous suspension of microorganisms in a sterile, sealed plate was placed in an ultrasonic tank operating at 1 MHz. Different power outputs were used. After desired time of exposure to the ultrasound, each sample was plated separately and aft...

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