نتایج جستجو برای: titrable acids
تعداد نتایج: 265231 فیلتر نتایج به سال:
the use of natural compounds to control plant pathogens lead to reduction in using fungicides. chitosan with duble effects, control pathogenic microorganisms and activate inducing defence responses, has been shown to be a reliable nontoxic material in the plant-pathogen interaction. the aim of this research was to consider the effects of chitosan and calcium chloride on decay and quality attrib...
The aim of the present study was to assess the microecosystem development and the dynamics of the lactic acid bacteria population during spontaneous fermentation of radish (Raphanus sativus L.) roots in brine at 20 and 30 °C. In both temperatures, lactic acid bacteria prevailed the fermentation; as a result, the pH value was reduced to ca. 3.6 and total titrable acidity increased to ca. 0.4% la...
Chemical composition of Hibiscus drinks (Koor and Vimto varieties, commercial and traditional, infusions and syrups) was related to sensory evaluation and acceptance. Significant correlations between chemical composition and sensory perception of drinks were found (i.e. anthocyanin content and Hibiscus taste). Consumers (n=160) evaluated drink acceptability on a 9-point verbal hedonic scale. Th...
The comparative evaluation of lactic acid fermentation of carrots and red beet juices inoculated with bifidobacteria and supplemented of commercial prebiotics containing inulin was performed. Some recommendations referring to the interval of time for interruption the fermentation with the aim to obtain the desirable characteristics of products were made. The inoculation of juices was accomplish...
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
This experiment was conducted to evaluate some biochemical characteristics and mineral elements of commercial strawberry cultivars available in Iran. Daughter plants of Selva, Queen Eliza, Paross, Aromas and Kurdestan cultivars were planted in Dcember 2014 in greenhouse with soilless culture system. Fruits of these cultivars were harvested at the commercial stage of maturity and some of their b...
The biguanide concentration of polyhexamethylene biguanide hydrochloride (PHMB-HCl) was measured by non-aqueous titration with HClO4, argentometric titration, the Kjeldhal method, and colloidal titration. The summation value of non-aqueous titration and argentometric titration corresponded to two titrable nitrogens in five nitrogens per one unit of PHMB-HCl, and consisted with the result of the...
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