نتایج جستجو برای: drying of springs

تعداد نتایج: 21166184  

ژورنال: علوم آب و خاک 2006
مجید سلیمانی, , محمد شاهدی, ,

The Drying process is one of the most important factors which are effective on the milling quality of rice and its economic value. In order to investigate the effect of dryer parameters on milling quality of rice and their relationships, one of the usual rice varieties (Binam) of Gilan province with an average milling quality and the initial moisture content of 20.5% was selected. Drying proces...

Journal: :علوم باغبانی ایران 0
لیلا تبریزی استادیار، دانشجوی سابق کارشناسی ارشد و استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج فرناز دژابون استادیار، دانشجوی سابق کارشناسی ارشد و استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج یونس مستوفی استادیار، دانشجوی سابق کارشناسی ارشد و استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مهدی مریدی فریمانی استادیار پژوهشکدۀ گیاهان و مواد اولیۀ دارویی، دانشگاه شهید بهشتی، تهران، ایران

with considering importance of post harvest operation on quality criteria of pot marigold (calendula offıcinalis l.), the effect of flower nutrient source (organic inputs such as cattle manure (25 t ha-1), municipal waste compost (20 t ha-1), spent mushroom compost (15 t ha-1), vermicompost (15 t ha-1) and control) as well as different drying methods including microwave (300, 600 and 900 w), ov...

Ali Reza Shojamoradi Mehdi Rajabi Hamaneh, Mohammad Foroughi-dahr Morteza Golmohammadi Seyed Jalaledin Hashemi,

The intermittent drying characteristics of an Iranian popular paddy rice variety were experimentally investigated to determine the drying kinetics and obtain the effective moisture diffusivity. A lab-scale fluidized bed dryer was designed and constructed to enable obtaining the required results while controlling critical drying parameters. The effects of drying temperature and tempering per...

Background: Pre-drying operations and drying methods have a significant effect on the quantity and quality of plants essential oils. Objective: In this study, the effect of pre-drying operation and vacuum oven-drying was investigated on the essential oil content and composition of Lippia citriodora. Method: This research was conducted as a factorial experiment in a completely randomized desig...

ژورنال: :پژوهشهای جغرافیای طبیعی 2010
مهران مقصودی حاجی کریمی فرشاد صفری ذبیح الله چهارراهی

massif of parav-bistoun covered around 880 square kilometers of the thrust zone of zagros mountains and located in kermanshah province. there are various kinds of karst landforms such as jamas, uvulas', dolines, caves in this mountainous area. these landforms are under the influence of palaeoclimatic conditions. nowadays, current climatic conditions in this area allows for development of karst ...

Journal: :فرآوری و نگهداری مواد غذایی 0

in this research the thin layer drying behavior of apricot (cv. ghavami and nasiry) at temperatures of drying air of 40, 50, 60 and 70 ºc and at drying air velocity of 2 ms-1 was studied. in order to select the best drying curve equation, 9 different thin layer drying models were fitted to the experimental data and were compared according to their coefficient of determination (r2), reduced chi-...

A Mehrafarin, H Naghdi Badi, Mohammadizad HA,

Background: Drying is the most common way to preserve quality of aromatic and medicinal plants. Chosen drying methods can affect on the essential oil content and composition of medicinal plants. Objective: This study aimed to assess the changes in essential oil constitutes of catnip aerial part under various drying methods. Methods: The experiment was performed as the randomized complete ...

The purpose of this study was to obtain the best anthocyanin pigment extract powder from 3 types of drying process, vacuum drying, spray drying, and  freeze-drying. The duration and temperature for each type of drying process are 15 h with temperature of 40 oC, 2 h with temperature of 120 oC (inlet) and 60 oC (outlet), 24 h with temperature of -50 o</su...

To optimize the use of sulfur in drying of apricot, four following treatments including: sulfiting and drying, sulfiting- blanching and drying, blanching- sulfiting and drying, and finally sulfiting- drying to % 50 of initial moisture- blanching and finish drying were studied. The levels of sulfur addition were from 0 to 1500 ppm, SO2 and drying was carried out at 50 to 74 °C. The quality of dr...

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