Drying Blueberry (Vaccinium corymbosum L.) Juice Concentrate by Spray Dryer: Optimization by Response Surface Methodology

Yıl 2017, Cilt: 15 Sayı: 2, 139 - 148, 11.08.2017

Kübra Atacan Derya Koçak Yanık

https://doi.org/10.24323/akademik-gida.333667

Cited By: 4

Öz

In this study, fruit powder was produced by a spray dryer from fruit
juice concentrate of blueberry which is high in phenolics and antioxidant
activity. Maltodextrin (DE8) was used as a drying agent. The effects of drying
parameters and optimum drying conditions were determined by using response
surface methodology (RSM). While the inlet air temperature (110-150°C) and the
amount of maltodextrin (20-80%) were independent variables, the phenolic
recovery and drying yield were dependent variables. At optimum drying
conditions, inlet air temperature and amount of maltodextrin were 130°C and 71%,
respectively. Outlet air temperature at an optimum condition was 76°C. The
total yield and phenolic recovery obtained at optimum conditions for fruit
powder (3.51% moisture) were 75.8% and 86.1%, respectively. The solubility, density,
hygroscopicity, porosity, cohesiveness, flowability, glass transition
temperature, total phenolic content, total anthocyanin content, antioxidant
capacity, and color were used as quality parameters.

Anahtar Kelimeler

Blueberry, Spray drying, Phenolics, Response surface methodology

Yaban Mersini (Vaccinium corymbosum L.) Suyu Konsantresinin Püskürtmeli Kurutucuda Kurutulması: Tepki Yüzey Yöntemiyle Optimizasyon

Öz

Bu çalışmada, fenolik madde içeriği ve antioksidan
aktivitesi yüksek olan yaban mersininden elde edilen meyve suyu konsantresinden püskürtmeli kurutucu ile meyve tozu üretim koşullarının
tepki yüzey yöntemiyle optimize edilmesi amaçlanmıştır. Çalışmada kurutma
ajanı olarak maltodekstrin (DE8)
kullanılmıştır. Hava giriş sıcaklığı (110-150°C) ve maltodekstrin oranı (%20-80)
bağımsız değişkenler; fenolik madde geri kazanımı ve kurutma verimi ise bağımlı
değişkenler olarak seçilmiştir. Verimin ve fenolik madde geri kazanımının
maksimum olduğu optimum kurutma şartları hava giriş sıcaklığı için 130°C,
maltodekstrin oranı için ise %71 olarak belirlenmiştir. Bu optimum koşulda hava
çıkış sıcaklığı 76°C olarak kaydedilmiştir. Optimum koşullarda elde edilen toz
yaban mersini (%3.51 nem) için verim ve fenolik madde geri kazanımı sırasıyla
%75.8 ve %86.1 olarak belirlenmiştir. Elde edilen toz üründe çözünürlük, yoğunluk, higroskopisite, gözeneklilik,
yapışkanlık, akabilirlik, camsı geçiş sıcaklığı, toplam fenolik madde miktarı,
toplam antosiyanin miktarı, antioksidan kapasite ve renk,
kalite parametreleri olarak incelenmiştir.

Anahtar Kelimeler

Yaban mersini, Püskürtmeli kurutma, Fenolik madde, Tepki yüzey yöntemi

Kaynakça

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