بررسی اثر پودر پوست انار بر خصوصیات فیزیکوشیمیایی و حسی کیک اسفنجی

نویسندگان
زهرا ملک پور 1
سارا انصاری 2
1 دانش آموخته کارشناسی ارشد گروه علوم و صنایع غذایی، واحد کازرون، دانشگاه آزاد اسلامی، کازرون، ایران
2 استادیار گروه علوم و صنایع غذایی، واحد کازرون، دانشگاه آزاد اسلامی، کازرون، ایران.
10.52547/fsct.17.102.31
چکیده
پوست انار، یک محصول جانبی صنایع فرایند آبمیوه است که به عنوان یک منبع بالقوه ترکیبات زیست فعال (نظیر پلی فنول)، مواد معدنی و فیبر شناخته شده است. در این مطالعه، ترکیب شیمیایی و خصوصیات عملکردی پودر پوست انار تعیین گردید و به عنوان جایگزین آرد گندم در پنج سطح 5/1، 3، 5/4، 6 و 5/7 درصد و دو اندازه ذرات 210 و 500 میکرون به فرمولاسیون کیک اسفنجی اضافه شد. سپس خصوصیات فیزیکی خمیر و در مرحله بعد خصوصیات شیمیایی، فیزیکی و حسی کیک های اسفنجی حاصل مورد بررسی قرار گرفت. آنالیز شیمیایی پودر پوست انار نشان داد که این پودر دارای فیبر بالا، املاح بویژه پتاسیم و کلسیم، و فنول بالاست. با افزایش درصد جایگزینی و کاهش اندازه ذرات میزان قوام و دانسیته خمیر کیک، همچنین حجم مخصوص و شاخص تقارن کیک به طور معنی‌داری افزایش و تخلخل کیک کاهش یافت. ارزیابی ترکیبات شیمیایی کیک نیز روند افزایشی معنی دار میزان رطوبت، خاکستر، فیبر کل، و روند کاهشی میزان پروتئین، کربوهیدرات و انرژی را با افزایش درصد پودر پوست انار نشان داد. ارزیابی رنگ کیک نشان داد که نمونه های حاوی سطوح بالاتر پودر پوست انار شاخص L* کمتر و شاخص های a* و b* بیشتری داشته و بنابراین تیره تر، قرمزتر و زردتر بودند. خصوصیات بافتی اندازه گیری شده با دستگاه ارزیابی بافت نیز، حاکی از افزایش سفتی و صمغیت و کاهش پیوستگی و فنریت، در حضور درصد بیشتر پودر پوست انار در فرمولاسیون کیک بود. بر اساس ارزیابی خصوصیات حسی کیک ها، نزدیک ترین نمونه به نمونه شاهد کیک حاوی 5/1 درصد پودر پوست انار با اندازه ذرات 500 میکرون بود. در مجموع می توان نتیجه گرفت که جایگزینی کمتر از 5/4 درصد پودر پوست انار می تواند در تولید کیکی با خواص کیفی مطلوب با ارزش تغذیه ای بالاتر مفید واقع شود.
کلیدواژه‌ها
پودر پوست انار
کیک اسفنجی
فیبر
ترکیبات فنولی
خصوصیات فیزیکوشیمیایی

موضوعات

عنوان مقاله English

Effect of incorporation of pomegranate peel powder on the phyiscochemical and sensory characteristics of sponge cakes

نویسندگان English

zahra malekpour 1
Sara Ansari 2
1 M.Sc. Graduated student, Department of Food Science and Technology, Kazerun Branch, Islamic Azad University, Kazerun, Iran
2 Assistant Prof., Department of Food Science and Technology, Kazerun Branch, Islamic Azad University, Kazerun, Iran
چکیده English

Pomegranate peel, a waste generated from fruit processing industry, is known as a potential source of bioactive ingredients such as polyphenols, minerals and fibers. In this study, the chemical composition and functional properties of pomegranate peel powder (PPP) were determined and it was applied as a substitute of wheat flour in formulation of sponge cake at five levels of 1.5, 3, 4.5, 6 and 7.5% and two particle sizes of 210 and 500 microns. Then, the physical properties of the batter and the chemical, physical and sensory properties of the resulting sponge cake were examined. The chemical analysis of PPP showed that this powder was high in fiber, minerals especially potassium and calcium, and phenols. By increasing the PPP level and decreasing its particle size, batter consistency and density, as well as cake specific volume and symmetry index were significantly increased, while the porosity of the cake decreased. The chemical analysis of the cakes also showed a significant increase in the moisture content, ash, total fiber, and the decreasing trend of the protein, carbohydrate and energy content by increasing the percentage of PPP. In addition, samples containing higher levels of PPP had a lower L * index and higher a * and b * indices and were, therefore, darker, more reddish and yellowish. According to texture analysis, cakes with a higher percentage of PPP had more hardness and gumminess, and less cohesiveness. Based on the sensory analysis, the closest sample to the control was a cake containing 1.5% PPP with a particle size of 500 microns. Overall, it can be concluded that replacing less than 4.5% PPP can produce a cake with good quality properties and higher nutritional value.

کلیدواژه‌ها English

pomegranate peel powder
Sponge cake
Fiber
phenol content
Physicochemical properties
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