Process for production of ready to drink iced teas from sage (Salvia officinalis L.) and linden (Tilia cordata): pressurized hot water extraction and spray drying

Abstract

The aim of this study was to produce ready to drink (RTD) iced teas from sage and linden. For this purpose, phenolics of sage and linden were extracted by pressurized hot water extraction (PHWE) and then the extracts obtained were spray dried by the addition of maltodextrin. The powders produced by spray drying were processed into RTD sage and linden iced teas by adding sucrose and citric acid. The optimum conditions of PHWE of sage and linden were at 160°C and for 10 min and 5 min, respectively. The solubility and microencapsulation efficiency of spray dried powders were found to be greater than 97%. In addition, total phenolic content and antioxidant activity of RTD iced teas are parallel with those of microencapsulated sage and linden powders after pasteurization at 80°C for 5 min. The sensory analysis of RTD iced teas showed that products were well-accepted by the panelists.

Spray-drying Microencapsulation of an Extract from Tilia tomentosa Moench Flowers: Physicochemical Characterization and in Vitro Intestinal Activity

“…Concerning Aw and moisture content, no significant differences were observed between the three different TtMPs. Even the encapsulation yield (EY), a parameter strongly associated with the profitability of the process, did not significantly vary, showing values close to what Alasavar et al [11] observed. by using OSA-S, in accordance with the higher encapsulation efficiency of this shell material (Fig.…”

“…1). When it comes to total phenols, no significant differences were found among the three materials, with EE ranging from 88.8 to 96.6%, not far from what Alaşalvar et al [11] obtained using MD 13-17 DE (97.4%). On the contrary, OSA-S stood out as the best wall material to encapsulate TtM flavonols compared to MDs (Fig.…”

“…Spray-drying is a largely employed microencapsulation technology by which it is possible to convert liquid extracts into powders with enhanced stability, ease of manipulation and integration into different types of functional foods and supplements [ 9 ]. Existing literature on the spray-drying of TtM flower extracts is limited to one study [ 11 ] based on maltodextrin 13–17 DE (dextrose equivalents) as the wall material, and no data about the stability over time and the efficacy of the encapsulated bioactive molecules are available.…”

Analytical techniques and herbal Medicinal Plants: A Review of past and present techniques

“…Winter savory (Satureja montana), Antioxidant activity Vidović, et al(2014). Common yarrow (Achillea millefolium), Antioxidant activity Vladić, et al (2016) Common sage (Salvia officinalis), Antioxidant activity Alaşalvar, & Çam, (2019). Lemon balm (Melissa officinalis), Antioxidant activity Tülek, et al(2020).…”

Production of Iced Tea from Poppy Flowers Extract

“…Özellikle sağlığın desteklenmesi konusunda bitkilerin çeşitli tıbbi özelliklerinden geleneksel tıpta faydalanılmıştır [1]. Son yıllarda bitkiler gıda endüstrisinde doğrudan bitki çayı üretiminde kullanıldığı gibi gıdaların duyusal özelliklerinin geliştirilmesinde de yardımcı ürün olarak tercih edilmektedir [2]. Birçok bitki türleri üzerinde yapılan araştırmalar neticesinde bitkilerin insan sağlığı üzerinde olumlu etkileri olduğu ve biyoaktif bileşiklerce zengin olduğu ortaya konulmuştur [3].…”