The Influence of Storage on Quality Aspects of Some Locally Processed Fruit Juices Drinks

الموضوعات

زراعة

الملخص

This study is carried out in order to make physical, chemical and microbial evaluation, for three types of natural fruit drinks, namely, orange/carrot, mango and apple, produced by one of the Khartoum State Food Industry Companies and consequently their fitness to the quality specifications. In addition to microbial evaluation of their concentrates. The three types of drinks which are orange/carrot, mango, and apple were stored under room temperature and market condition for three, six and eight months. Moisture content, pH, total soluble solids, viscosity, titrable acidity, ascorbic acid, total sugars, reducing sugars and sucrose were determined. Results showed that there was significant difference between the two storage conditions compared to control. Some changes in physical and chemical properties were observed for the three types of drinks, where some parameters increased and others decreased. The effect of storage treatment was highly observed in case of vitamin C, where its values for control samples were 72.99, 72.50 and 66.98mg/100ml for orange/carrot, mango and apple drink. While, vitamin C contents after three months storage were 27.10, 25.2 and 28.63mg/100ml for orange/carrot, mango and apple, respectively (room temperature), but on market condition vitamin C contents were 26.26, 23.5 and 28.0mg/100ml for orange/carrot, mango and apple, respectively. Results of microbial analysis showed that no growth of coli form bacteria, yeasts and moulds was observed in all samples of the fruit drinks concentrates, indicating the absence of these microbes in the drinks prepared from these concentrates. The same results were observed in the stored samples. However, all stored samples showed some total viable Bacterial count. Concerning quality specifications, it was found that orange/carrot drink fulfill the standard specifications

روابط وملفات

التعريف والنوع

رقم الوثيقة

0836d8fb-ae91-40f8-8a14-f716d5fada0c

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1636366_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"حسن علي","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"نجلاء موسى","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

English

المصدر والدورية

اسم المصدر

The Influence of Storage on Quality Aspects of Some Locally Processed Fruit Juices Drinks

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

حسن علي

الإعداد

نجلاء موسى

الاقتباسات الببليوغرافية