Time filter

Source Type

Tookalloo M.R.,Islamic Azad University | Mollafilabi A.,Khorasan Research Institute for Food Science and Technology KRIFST | Mohassel M.H.R.,Ferdowsi University of Mashhad
Acta Horticulturae | Year: 2010

Saffron (Crocus sativus L.) is the most valuable agricultural and medicinal crop of the world and possesses a special place as exporting crop in Iran. This experiment was conducted as a Randomized Complete Block design, with split plot arrangement and 4 replications per treatment at the Khorasan park of science and technology experimental station in Mashhad, during 2003-2005. Planting dates (11/7/2003, 11/8/2003 and 11/9/2003) and corm size (2-4 g, 5-7 g and >8 g) were allocated as main-plots and gibberellin concentration (0, 750 ppm and 1500 ppm) were used as sub-plots. The results indicated significant differences between planting dates for traits including flower yield, number of flowers, stigma and style dry weight. However, there were significant differences among weight except for flower weight and number of flowers. Different concentrations of gibberellin significantly (p<1%) affected the above mentioned characteristics. Significant differences were observed between the years of the experiment probably due to increasing plant age and climatic conditions resulted in more nutrient accumulation and plant vigor. In conclusion, planting date treatments 11/7/2003 along with corm size >8 g and corm treatment with 750 ppm of gibberllin showed superiority to other treatments. Source

Mollafilabi A.,Khorasan Research Institute for Food Science and Technology KRIFST | Aslami M.H.,Saffron Production and Processing Co.
Acta Horticulturae | Year: 2010

At present the cultivation area of poppy is 193,000 ha in Afghanistan with 8200 t opium production, providing 90% of the world's narcotic materials. Since 1998, formally, with respect to the suitable climatic and ecological conditions, especially in Herat province, saffron cultivation in a project entitled, "A survey on production and marketing saffron" was conducted by RALF (Research in Alternative Livelihood Fund) related to ICARDA (International Center for Agriculture Research in Dry Areas) and with responsibility of DACAAR (Danish Committee for Aid to Afghan Refugees) and Ministry of Agriculture and Animal Husbandry of Afghanistan in Herat province. Saffron as a replacement cultivation is supported and extended and is under sustainable development and marketing by foreign governments and institutes. In the paper, socio-economic data are presented for the first time. Source

Kakhkia A.H.,Khorasan Research Institute for Food Science and Technology KRIFST
Acta Horticulturae | Year: 2010

The saffron petals anthocyanin was extracted by a solvent mixture containing 95% ethanol + 1/10 N hydrochloric acid (85:15), followed by filtration and concentration using a rotary vacuum evaporator at 40°C. concentrated anthocyanins solution was incorporated in model beverage consisting of sucrose in citrate buffer at pH≠2.8. It was kept at 4 and 20°C under dark and light conditions for 100 days. The stability of color was determined by pH-differential method at 20 days intervals. The results indicated that the half life of anthocyanin at 4, 20°C under dark and or 20°C under light was 310, 45 and 30 days, respectively. Source

Mollafilabi A.,Khorasan Research Institute for Food Science and Technology KRIFST | Rashed M.H.,Ferdowsi University of Mashhad | Moodi H.,Ferdowsi University of Mashhad | Kafi M.,Ferdowsi University of Mashhad
Acta Horticulturae | Year: 2010

Attention to phytotherapy has caused cultural extension, managements and programming of drug plants. Black cumin is one of the most important pharmaceutical plants that have characteristics like increasing mother's milk, antibacterial and antivirus and ant epilepsy. In order to effects of plant density and nitrogen on yield and yield components of Black cumin (Nigella sativa L.), an experiment in the form of factorial RCB design with 4 replications has been conducted at Ferdowsi University of Mashhad, Iran. Studied factors were plant density with 4 levels (60, 120, 180 and 240 plants per m2) and nitrogen with for levels (0, 50, 100 and 150 kg/ha). Studying traits were plant height, LAI (leaf area index), TDM (total dried matter), CGR (crop growth rate), biomass, seed weight, seed No. in follicle, yield and harvest index. Results showed that LAI, TDM and CGR increased by increasing plant density and nitrogen levels. LAI and CGR were highest in reproduction stage. Relative growth rate (RGR) was not affected by plant density and nitrogen and had a diminishing procedure during growing season. Number of flowering branches and follicles per plant were decreased by increasing plant density. However, plant density had no significant effect on plant height, 1000 seeds weight, number of seed per follicle, seed yield, biological yield and harvest index. Seed yields were 779, 804, 809 and 502 kg/ha in plant density treatments, respectively. There were significant differences between nitrogen application treatments and without nitrogen application. Nitrogen increased plant height, no. of flowering branches, no. of follicle per plant, biological yield and seed yield. Seed yield was 590 kg/ha in no. nitrogen treatment. Application of 50, 100 and 150 kg/ha of nitrogen resulted in 815, 895 and 896 kg/ha seed yield, respectively. But, there were no significant differences among 50, 100 and 150 kg/ha nitrogen levels for above parameters. Number of seed per follicle was minimum at 0 and 150 kg/ha nitrogen levels and was maximum at 50 kg/ha nitrogen. Nitrogen had no significant effect on 1000 seeds weight. There was negative correlation between nitrogen level and harvest index. Source

Razavi S.M.A.,Ferdowsi University of Mashhad | Moghaddam T.M.,Ferdowsi University of Mashhad | Emadzadeh B.,Khorasan Research Institute for Food Science and Technology KRIFST | Salehi F.,Ferdowsi University of Mashhad
Food Hydrocolloids | Year: 2012

In this paper, the effect of salt type (sodium and calcium chlorides), salt concentration (0, 0.5, 20 and 50mM) and temperature (20, 30 and 40°C) on the properties of dilute sage seed gum (SSG) solutions were investigated. SSG was evaluated for intrinsic viscosity by various models i.e. Huggins, Kraemer, Higiro and Tanglertpaibul and Rao equations. The results showed that the Tanglertpaibul & Rao and Higiro equations were chosen as the best models for intrinsic viscosity determination of SSG at different temperatures and salts concentrations, respectively. The increase in ionic strength of the NaCl and CaCl 2 from 0 to 0.5mM caused increase in intrinsic viscosity, but increasing the temperature from 20 to 40°C and salts concentrations from 0.5 to 50mM decreased the intrinsic viscosity. Divalent ions from CaCl 2 showed a more pronounced effect on the intrinsic viscosity compared with monovalent ions from NaCl. SSG solutions at all temperatures and salts concentrations were in the dilute domain. The weight-average molecular weight of sage seed gum was obtained as 1.5×10 6Da. © 2012 Elsevier Ltd. Source

Discover hidden collaborations