Search published articles
Showing 2 results for Akhondzadeh basti a
Volume 17, Issue 106 (December 2020)
Abstract
Nowadays, studies have been developing in order to use antimicrobial properties of plants instead of using synthetic preservatives. Jujube is one of the famous herbs. Jujube (Ziziphus jujube. Mill) belongs to family of Ramnaseh and native to the central areas of the Iran plateau. The fruit, leaves and root of this plant have medicinal and wellness properties. In this study, evaluated some physico-chemical of jujube extract (Extraction yield, Moisture, water activity, Fat content, Ash, Brix) and its effect on the mold of Aspergillus flavus. Extraction of dried and Ground jujube fruit was done by soaking with Hydroethanol solvent. Chemical composition of the extract was determined by GC-MS method. So the evaluated minimum inhibitory concentration (MIC) and the minimum fungal concentration (MFC) of extract against Aspergillus fulvous (PTCC 5004) by the dilution method in a liquid medium. In the next step, different concentrations of the extract were sprayed on corn grains and after placing a disk containing suspension of Mold spores in each petri dish. Growth of mold on corn grains was measured during 7 days. The results showed that the hydroethanolic extract of jujube fruit has an anti-mold effect against Aspergillus fulvous and the minimum inhibitory concentration of extract in the culture medium was determined 350 μg / ml and there was not observed any lethality at concentrations less than 1000 μg / ml. The minimum inhibitory concentration of the extract in the blanched corn grain medium was 5000 μg / ml. Therefore, the hydroethanolic extract of jujube fruit has an inhibitory effect on Aspergillus flavus but does not have the inactivation effect on this mold and its spores.
Volume 18, Issue 118 (December 2021)
Abstract
In this study, the effect of adding different concentrations of Bene kernel (5 and 10%) and its microliposomes (400 ppm) on the physicochemical and sensory properties of cream was investigated. The treatments of this research were as follow: T1 (cream with 30% fat), T2 (cream with 20% fat and microliposome), T3 (cream with 20% fat+ microliposome and 5% Bene kernel oil), T4 (cream with 20% fat+ microliposome and 10% Bene kernel oil). PH and syneresis during storage and the parameters of viscosity, texture, color index and sensory evaluation were measured. Results showed that in all samples, during the storage, syneresis increased and the amount of pH decreased (P <0.05). By adding Bene kernel oil, the viscosity of the samples increased (P <0.05). The addition of 10% Bene kernel oil reduced the brightness and increase softness of the texture, and it was not approved in terms of sensory evaluation. T3 was chosen as optimal treatment. The results of this study showed that encapsulating Bene kernel oil as source of phenolic and tocopherol compounds and also applying its oil, help us using beneficial properties of Bene and also provides a positive step towards the production of low-fat cream and promoting consumer health.