fire blight, caused by the bacterium erwinia amylovora, is one of the most destructive diseases of plants in the rosaceae subfamily pomoideae. the objective of this study was to determine the level of resistance of 30 pear cultivars and describe the biochemical changes induced in some resistant and susceptible cultivars. the level of resistance was determined by the length of the fire blight le...

The Zingiberaceae, the largest family in the Zingiberales, comprises nearly 50 genera and 1,000 species and is pantropical, concentrated mainly in the old world, chiefly in Indomalaysia. Members of the family yield spices, dyes, perfumes, medicines and a number of ornamental species are cultivated for their showy flowers. Recently this plant has acquired great importance in the present-day worl...

Abstract Maltodextrin is a food additive produced from starch which hydrolyzed by the addition of acids or enzymes. often added to production instant drinks. The use maltodextrin in drinks serves as filler material that can inhibit damage due drying process, coat flavor components, accelerate and increase solubility. purpose this study was determine appropriate concentration manufacture red gin...

Despite black liquor’s (BL) renown as a difficult-to-manage contaminant in the pulp and paper industry, BL has been found viable alternative material for adhesive formulation due to its high lignin content. Nevertheless, modification is required enhance lignin’s reactivity, there currently lack of study focusing on this aspect BL-lignin. This aims increase phenolic hydroxyl content BL-lignin by...

Background: Thymus persicus is one of the Iranian endemic medicinal plants, that its decoction and various products have plenty of food and pharmaceutical uses. Objective: Evaluation of T. persicus products metabolite contains and determination of the best antioxidant, anti-diabetic and anti-Alzheimer extract. Methods: Samples total phenolic, flavonoid and tannin contents were determined by F...

Organic fertilizers play a significant role in organic systems and sustainable soil management. In general, organic fertilizers increase soil fertilization so can reduce the negative effects of the excessive use of chemical fertilizers and synthetic man-made fertilizers. This study was carried out in the Medicinal Plants Farm of Shahid Bakeri Higher Education Center of Miandoab during summer 20...

To evaluate the biological potential and medicinal properties, the biochemical compositions and quantity and quality of essential oil of Marrubium vulgare L., grown in the natural habitat located in Guynik region, North Khorasan province, were investigated. The content of secondary metabolites including phenol and flavonoids, and antioxidant capacity were measured in laboratory methods. Essenti...

The research used an artificial neural network (ANN) to examine optimum extraction conditions and phytochemical contents of Luffa cylindrica seed oil. oil yield was predicted using network. performance the ANN response surface methodology models compared. yielded 7.567% yield, 185.676 mg/l phenol, 45.087 terpineol at 75.57 °C temperature, 5.77 h time, 10.68 g/mol n-hexane concentration, respect...