نتایج جستجو برای: Oil quality

تعداد نتایج: 883292  

Journal: :تحقیقات مهندسی کشاورزی 0
جلال محمدزاده عضو هیئت علمی بخش تحقیقات فنی مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی گلستان محمدرضا احمدی کارشناس ارشد بخش تحقیقات اصلاح و تهیه نهال و بذر مرکز تحقیقات کشاورزی و منابع طبیعی گلستان

olive oil is one of the oldest known vegetable oils, ranking sixth in world production. since it is extractedfrom fresh fruit and used without aging, the conditions of oil production are very important. during theextraction of virgin olive oil, the milling and malaxation steps are vital for increasing oil yield and quality.in this study, the effect of milling (single or double), temperature of ...

Journal: :علوم باغبانی 0
اعظم آسفی نجف آبادی خدایار همتی عظیم قاسم نژاد مینا غزائیان پونه ابراهیمی

abstract the harvesting time and storage conditions of olive fruit are effective factors on the quality and quantity of oil. the harvesting time of olive is different in each area and it depends on climatic conditions.this investigation was carried out to assess the impact of harvesting time on olive oil quality and quantity frome two olive varieties cultivated in gorgan region. for this reason...

Journal: :journal of agricultural science and technology 2010
c. borchani s. besbes ch. blecker h. attia

raw (intact) sesame seed showed a high content of oil, protein and ash: respectively, 52%, 24% and 5%. studies were conducted on some quality characteristics of sesame and olive oils. the following values were obtained from raw sesame, sesame paste and olive oils, respectively: unsaponifiable matter 1.35, 1.46, and 1.50%; total phenols 14.21, 16.82, and 53.33 mg kg-1 oil; chlorophylls 0.04, 0.0...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Journal: :journal of agricultural science and technology 2015
f. cukur n. demirbas t. cukur v. dayan a. c. uzun

olive oil is one of the foods that are preferred by consumers seeking healthy nutrition. healthy, safety and high quality olive oil production can only be achieved in olive oil enterprises that follow these criteria. therefore, food safety and quality management systems should be placed in these olive oil enterprises. the aim of this study was to determine behaviors and attitudes of firm owners...

2017
Gustavo A. Pereyra-Irujo Luis A. N. Aguirrez'abal

Sunflower (Helianthus annuus L.) grain and oil quality are defined by grain weight and oil percentage, oil fatty acid composition and the amount of antioxidants. The aim of this work was to establish and validate a simple model, based on published relationships, which can estimate not only yield and its components, but also grain and oil quality aspects which are of relevance for industrial pro...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
mehraein ghasemi reza shokrani javad keramat

oil is a strategic product in our country, iran. the amount of importing this product is considerable, and therefore, any attempt to produce crude oil in our country in a way that competes with the foreign counterparts, with regard to both quality and production cost is considered important. this study addresses the effect of oil seeds preparation step on quality of crude oil, which is extracte...

2011
Yusuf Yiliyasi Daniel Berleant

While high quality oil data can help oil companies and governments reduce risk of investments and increase profits, bad oil data can lead to economic losses. In this research, we propose a framework for assessing the information quality of world oil reserves data. The framework is applied by calculating the information quality ratings of relevant information sources. The information quality dim...

2016
Arpita Khanna

A large body of scholarship finds a negative relationship between oil abundance and economic growth. The existing empirical evidence on the oil curse, however, does not account for variations in the ownership of oil. This article investigates whether the effect of oil abundance on growth varies with ownership structures. It also investigates whether institutional quality influences the effect o...

Journal: :journal of agricultural science and technology 2013
r. farhoosh m. h. haddad khodaparast a. sharif s. alavi rafiee

the present study was conducted to determine the relative contribution of initial quality and compositional parameters to the rate of changes (rctpc) in the content of total polar compounds (tpc), which is considered to be one of the most reliable indicators of heated oils quality, of olive oil during continuous heating at 180 ºc. the ratio between monounsaturated and polyunsaturated fatty acid...

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