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العنوان
Quality characteristics of black olive paste mixed with two natural flavors dried basil and sun -dried tomatoes /
الناشر
Eslam Sayed Halmy ,
المؤلف
Eslam Sayed Halmy
هيئة الاعداد
باحث / Eslam Sayed Halmy
مشرف / Salwa Bayoumi Elmagoli
مشرف / Naglaa Hassan Elgazar
مشرف / YOUSEEF MOUSTAFA REYAD
تاريخ النشر
2019
عدد الصفحات
103 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علوم وتكنولوجيا الأغذية
تاريخ الإجازة
18/9/2019
مكان الإجازة
جامعة القاهرة - كلية الزراعة - Food Science Technology
الفهرس
Only 14 pages are availabe for public view

from 139

from 139

Abstract

Commercial pickled black olives were prepared into paste after pitting, washing, grinding and natural flavors (Dried Basil and Dried Tomatoes) were added each at 10% of paste. Flavored paste was filled in glass jars covered with olive oil, pasteurized at 80oC for 10 min and stored for 180days at room temperature. Olive paste samples were analyzed for physicochemical properties, microbiological analysis and sensory evaluation.PH values of the pastes ranged from 3.5 to 4.2. There were significant difference between olive paste without addition and olive paste with basil after 180days of storage. On other hand the olive paste with dried tomatoes had no significant difference after storage. HPLC results show differences of phenolic compounds between pastes. The processing and storage time increased the chromaticity coordinate L*, a* and b* in the samples. Texture analysis showed significant difference only for olive paste with dried tomatoes. Sensory evaluation showed differences between samples , the odor of olive paste with basil and appearance of olive paste with tomatoes had a highly acceptance, but the olive paste without addition had a highly pleasant of taste and overall acceptability