Microbial Evaluation of Turkish Herbal Teas Before and After Infusion
Authors
Abstract:
Background: Herbal teas are produced and sold in packaged or unpackaged forms all over the world. The aim of this study was microbial evaluation of Turkish herbal teas before and after infusion in boiled water. Methods: A total of 20 packaged and unpackaged samples of Turkish herbal teas, including chamomile, salvia, green, mix, apple, mate, ginger, linden, fennel, and senna tea were collected. All of the samples were analyzed before and after infusion in hot water (~100 °C). Microbiological analyses were performed with tenfold serial dilution for yeast-mold, Salmonella, and Cronobacter sakazakii after enrichment by using the spread-on-plate method on selective agar. Data were statistically analyzed by using Microsoft Office Professional Plus 2013 Excel software. Results: Three out of the 20 tea samples (15%) were contaminated with C. sakazakii. None of the samples were contaminated with Salmonella spp. No significant difference was found in occurrence of C. sakazakii before and after infusion of the samples (p>0.05). Mold and yeast contamination were found in 12 out of 20 teas samples (60%). No statistical significance (p>0.05) was found between the mold-yeast contents of the unpackaged and packaged herbal teas. After infusion, neither mold nor yeast was observed in any of the samples. Conclusion: All of the herbal teas in this research were found to be within the microbiological limits for consumption according to Turkish Food Codex. However, the microbiological results highlighted the need for quality control of senna tea during production to eliminate the risk of C. sakazakii contamination. DOI: 10.18502/jfqhc.7.4.4844
similar resources
Review on Herbal Teas
Herbal tea is essentially an herbal mixture made from leaves, seeds and/ or roots of various plants. As per popular misconception, they are not derived from the usual tea plants, but rather from what are called as ‘tisanes’. There are several kinds of tisanes (herbal teas) that have been used for their medicinal properties. Some of them being consumed for its energizing properties to help induc...
full textThe pH and Neutralisable Acidity of the Most-Consumed Turkish Fruit and Herbal Teas
Aim: Tea is a traditional beverage. There are different types of tea, such as black, green, oolong, herbal and fruit teas. In recent years, there has been increased interest in herbal and fruit teas among new generations. The aim of this study was to assess the erosive potential of some herbal and fruit teas on the Turkish market. Methods: The erosive potential of five fruit and six herbal teas...
full textBioactivity of South African Herbal Teas
Rooibos (Aspalathus linearis) and honeybush (Cyclopia intermedia) are popular tisanes in their native South Africa and have a growing worldwide market. Both herbal teas are used traditionally for medicinal purposes and are rich in polyphenols with rooibos a rare source of the dietary dihydrochalcones, aspalathin and nothofagin. The principal polyphenols in honeybush include the xanthone mangife...
full textEvaluation of Periodontal Indices Before and After Crown Lengthening Surgery
Introduction: Biological Width is needed to maintain the health of gingiva around teeth that need restoration. Crown Lengthening (CL) surgery can be used to prevent invading the BW by sub-gingival restoration. The aim of this study was to evaluate gingival indices before and after CL surgery. Materials and Methods: In this analytical-longitudinal study, 23 teeth of 18 patients referred to ...
full texton translation of politeness strategies in dialogues involving female characters in translations and retranslations of novels translated before and after the islamic revolution of iran and their effects on the image of women: a polysystem theory approach
abstract reception environment has considerable effects on accepting a translation. as the expectations of a target culture and its values and needs change throughout history, its criteria for accepting a translation or rejecting it will change accordingly (gentzler, 2001). the expectations of iran, as the reception environment in the present study, have changed after the islamic revolution. i...
Factors Affecting Transfer of Pyrethroid Residues from Herbal Teas to Infusion and Influence of Physicochemical Properties of Pesticides
The transfer of pesticide residues from herbal teas to their infusion is a subject of particular interest. In this study, a multi-residue analytical method for the determination of pyrethroids (fenpropathrin, beta-cypermethrin, lambda-cyhalothrin, and fenvalerate) in honeysuckle, chrysanthemum, wolfberry, and licorice and their infusion samples was validated. The transfer of pyrethroid residues...
full textMy Resources
Journal title
volume 7 issue 4
pages 170- 174
publication date 2020-12
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023