نتایج جستجو برای: ta and vitamin c decreased while others increased during storage ldpe film maintained the ph

تعداد نتایج: 21455071  

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1389

this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...

Journal: :مهندسی بیوسیستم ایران 0
مهشید جهادی محمدرضا احسانی سعیده سادات موسوی

the effects of pasteurization, storage time and temperature on proteolysis of milk were evaluated. two replicates of each of raw and pasteurized milk were assigned to three temperatures (5, 16 and 25 ?c) and 3 storage periods (1, 2 and 3 day) in a 2×3×3 full factorial design. for all the samples, ph and indices of proteolysis were determined. the effect of all the three main factors (pasteuriza...

Journal: :علوم باغبانی ایران 0
عبدالحسین ابوطالبی استادیار گروه باغبانی دانشگاه آزاد اسلامی واحد جهرم بهنام بهروزنام استادیار گروه باغبانی دانشگاه آزاد اسلامی واحد جهرم زهرا پشنگه دانشجوی سابق کارشناسی ارشد گروه باغبانی دانشگاه آزاد اسلامی واحد جهرم

the effects of different concentrations of salicylic acid as compared with control and as well with distilled water treatment were assessed on induction of resistance to chilling injury and quality of sweet lemon during its storage. for the purpose, sweet lemon fruits were treated by immersion method for 5 minutes in salicylic acid (200,400 and 600 mg/lit) and then packed in polyethylene bags t...

Journal: :Molecules 2017
Jian Fan Zhuangzhuang Chu Lin Li Tianrui Zhao Min Yin Yuyue Qin

The effects of poly(lactic acid) (PLA)-based film with inorganic antimicrobial nano-TiO₂ and nano-Ag on the physicochemical and microbial quality of Tremella aurantialba stored at 4 ± 1 °C for 16 days was investigated. Rosemary essential oil (REO, 9 wt %) was added into PLA film as plasticizer. Low-density polyethylene (LDPE) and PLA film was used as the controls. The experiment measured physic...

Journal: :علوم باغبانی 0
جواد فتاحی مقدم محمد فاضل حلاجی ثانی

the harvest date more influenced on postharvest quality during storage. in present study, fruits were harvested at four date base on total soluble solids content (5.5, 6.5, 7.5, and 8.5%) and then stored at 0.5 ºc and 80-90% rh, for 18 weeks. the samples were taken in 6th, 12th and 18th interval weeks and evaluated some parameters including weightless, losses, firmness, tss, ta, tss/ta, ascorbi...

Journal: :علوم باغبانی ایران 0
مهشاد مقومی یونس مستوفی علیرضا طلایی

an investigation was carried out to study the effect of sole heat treatment and sole 1- methyl cyclo propine (1- mcp) as well as in combination on storage quality of strawberries. the factorial experiment was conducted using a completely randomized design of three replications. treatments included heat treatment at two levels (room teperature, 45°c for 3h) and 1- mcp at two levels (0, 1µl l-1)....

Journal: :علوم باغبانی ایران 0
جواد فتاحی مقدم دانشجوی دکترای علوم باغبانی دانشگاه گیلان و عضو هیئت علمی موسسه تحقیقات مرکبات کشور- رامسر محمدفاضل حلاجی ثانی عضو هیئت علمی موسسه تحقیقات مرکبات کشور- رامسر مازیار فقیه نصیری دانشجوی دکترای علوم باغبانی دانشگاه تربیت مدرس و عضو هیئت علمی موسسه تحقیقات مرکبات کشور - رامسر حسین طاهری عضو هیئت علمی موسسه تحقیقات مرکبات کشور- رامسر

kiwifruit softening and the spread of gray mold on the fruit are the most important factors to be considered in kiwifruit storage life. in this study, the effect of calcium chloride (0, 1, 2, 4 and 8 percent) for 2, 4 and 8 minutes of dipping time were examined to improve the fruit physicochemical characteristics. following fruits being dried (24 hours), they were stored at 0.5oc and 85-90% rh ...

Journal: :journal of ornamental plants 2015
j. fattahi moghadam h. ebadi

decline in postharvest losses of kiwifruit depended to maintain of quality characteristics during storage and transportation. storage losses caused serious economic losses in kiwifruit. this study was conducted to inhibition of pathogen infection and increasing fruit quality of kiwifruit. hayward kiwifruits inoculated by b.cinerea conidia through pore wounds which formed by removal of the pedic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم تربیتی و روانشناسی 1391

the purpose of this study was to examine the status of supervision on departments’ heads at ferdowsi university of mashhad (fum) and realize some applied themes to provide a fit model for supervising departments’ heads in fum. the method was case study under a research category aimed for applied one. using purposive sampling, interviews were conducted with top fum managers, head departments, an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

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