Optimization of Spray Drying Encapsulation of Bioactive Compounds from Organic Blueberry Extract

Year 2022, Volume: 20 Issue: 1, 1 - 11, 03.04.2022

Sultan Can Fahrettin Göğüş Hüseyin Bozkurt

https://doi.org/10.24323/akademik-gida.1097801

Cited By: 1

Abstract

In this study, the effects of spray drying parameters on organic blueberry extract were investigated. High amounts of bioactive compounds were extracted from blueberry by solvent extraction. Response surface methodology was applied for the optimization of spray drying conditions. Extract mass percentage of feed mixture (m/m in dry basis 15-50%), air inlet temperature (120-150°C) and solid content of feed (20-40°Brix) were independent variables. Operational efficiency (yield) and phenolic retention were responses. Maltodextrin was used as an encapsulating agent. The optimum extract mass percentage, temperature and solid feed content were estimated as 19.51% (m/m) extract, 120°C and 20.03°Brix, respectively. The maximum levels of responses under optimum conditions were obtained as operational efficiency of 91.20% and phenolic retention of 87.12%. It was found that the most important variable for bioactive compound retention was the extract mass percentage. Encapsulated powder had 3.19% moisture content, and contained 5.54 mg gallic acid equivalents (GAE), 1.52 mg cyanidin-3-glucoside (C3G), and 46.41 μmol Trolox equivalents (TE) per gram dry powder. DPPH free radical scavenging activity value (EC50) of powder was 8.14 mg soluble solids/mL. Bioactive powder obtained could be considered as a possible functional food ingredient. In conclusion, blueberry extract powder could be efficiently produced by spray drying.

Keywords

Spray drying, Encapsulation, Blueberry, Response surface methodology

Supporting Institution

The Scientific and Technological Research Council of Turkey (TÜBİTAK), FP7 ERA-Net CORE Organic Plus, European Commission, Bursa Central Research Institute of Food and Feed Control

Project Number

2211/2210-C

Thanks

We are very grateful for the financial support of “The Scientific and Technological Research Council of Turkey” (TUBITAK) during the research of this subject (2211/2210-C). We are grateful for the financial support provided by funding bodies within the FP7 ERA-Net CORE Organic Plus, and with co-funds from the European Commission for this project. We would also like to thank Bursa Central Research Institute of Food and Feed Control for financial support.

Organik Yaban Mersini Ekstraktından Elde Edilen Biyoaktif Bileşiklerin Püskürtmeli Kurutmayla Enkapsülasyonu

Abstract

Bu çalışmada, püskürtmeli kurutma parametrelerinin organik yaban mersini ekstraktına etkileri incelenmiştir. Solvent ekstraksiyonu ile yaban mersininden yüksek miktarda biyoaktif bileşik ekstrakte edildi. Püskürtmeli kurutma koşullarının optimizasyonu için yanıt yüzey metodolojisi uygulandı. Besleme karışımının ekstrakt kütle yüzdesi (kuru bazda, 15-50%), hava giriş sıcaklığı (120-150°C) ve besleme karışımının katı madde miktarı (20-40 Brix) bağımsız işlem değişkenleridir. Operasyon verimliliği ve fenolik tutunum modelin yanıt değişkenleridir. Kaplama ajanı olarak maltodekstrin kullanıldı. Optimum ekstrakt kütle yüzdesi, sıcaklık ve besleme karışımının katı madde miktarı sırasıyla 19.51%, 120°C ve 20.03 Briks olarak belirlendi. Optimum şartlar altında yanıt değişkenlerinin maksimum seviyeleri %91.20 operasyon verimliliği ve %87.12 fenolik tutunum olarak bulundu. Biyoaktif bileşiklerin tutunumunda en önemli değişken ekstrakt kütle yüzdesi olarak bulundu. Enkapsüle edilmiş toz %3.19 nem içeriğine sahipti ve kuru tozun gramı başına 5.54 mg gallik asit eşdeğeri (GAE), 1.52 mg siyanidin-3-glukozit (C3G) ve 46.41 µmol Troloks eşdeğeri (TE) içeriyordu. Tozun DPPH serbest radikal yakalama aktivitesi değeri (EC50) 8.14 mg çözünür katı/mL olarak bulundu. Elde edilen biyoaktif toz muhtemel fonksiyonel gıda bileşenidir. Sonuç olarak, yaban mersini ekstraktı tozu püskürtmeli kurutmayla verimli şekilde üretilebilmiştir.

Keywords

Püskürtmeli kurutma, Enkapsülasyon, Yaban mersini, Tepki yüzey metodolojisi

Project Number

2211/2210-C

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