@article { author = {Shaddel, Rezvan and Rajabi Moghaddam, Shadi}, title = {Production and Evaluation of Caffeine Nanochitosome and Instant Drink Powder Enriched with It}, journal = {Iranian Food Science and Technology Research Journal}, volume = {20}, number = {1}, pages = {135-152}, year = {2024}, publisher = {Ferdowsi University of Mashhad}, issn = {1735-4161}, eissn = {2228-5415}, doi = {10.22067/ifstrj.2023.80391.1231}, abstract = {Introduction Caffeine is one of the most common bioactive compounds in the world that can enhance mental and physical performance However its bitter taste has created challenges for the use of this compound in food. Nano-encapsulation technology, such as the use of liposomes, is one of the simplest ways to overcome this issue. In this research, caffeine was encapsulated in nanoliposomes coated with chitosan and then the drink powder enriched with caffeine nanochitosome was produced.   Materials and methods  In this research, pure caffeine powder was purchased and stored in dry environment at room temperature. Ethanol (96%) and acetic acid were obtained from Mojallali Company, Tween 80 from Merck Company (Germany), lecithin (P3556), cholesterol (C8667), and chitosan (medium molecular weight) purchased from Sigma Aldrich Company (Germany). Sugar, essential oil and citric acid used in the formulation of the drink were purchased from a local store.  First, nanochitosomes in ratios of 9:1, 8:2 and 7:3 lecithin-cholesterol, were prepared using thin-layer hydration method. Then, the particle size and zeta potential were measured to determine the characteristics of the produced particles. Encapsulation efficiency was measured for 9:1, 8:2 and 7:3 lecithin-cholesterol ratios. The stability of the chitosomal sample with a ratio of 9:1 lecithin-cholesterol was evaluated through visual observation of precipitation formation and the amount of release of encapsulated caffeine during 60 days of storage at ambient temperature was calculated. FTIR was performed for each of the components of the wall of chitosomes, caffeine powder, chitosomal solution containing caffeine and chitosomal solution without caffeine with a ratio of 9:1 lecithin-cholesterol. Nanochitosomes with 9:1 lecithin-cholesterol ratio were used in the formulation of beverages due to having the smallest particle size, favorable zeta potential, the highest microencapsulation efficiency, and high stability during storage. The drink samples were prepared in different formulations (samples containing 3 and 5% free caffeine solution, samples containing 3 and 5% chitosomal caffeine solution and the control sample). Then, the drinks were evaluated in terms of sensory characteristics and other physico-chemical characteristics (pH, acidity, Brix degree, etc.). The drinks produced were turned into powder with a freeze-dryer machine, and two important characteristics of powdered products, i.e. water solubility index and their hygroscopicity, were evaluated.   Results and Discussion  The average particle size and zeta potential for different ratios of lecithin -cholesterol were obtained in the range of 133.3-443.6 nm and +40.96 to +48.36, respectively. The encapsulation efficiency for 9:1, 8:2 and 7:3 lecithin-cholesterol ratios were 91.2%, 86.18% and 79.09 %, respectively. The chitosomal sample with 9:1 lecithin-cholesterol ratio showed good stability during 60 days of storage at ambient temperature. FTIR results showed that caffeine was loaded in nanochitosomes. The results of the sensory evaluation of the prepared beverages showed the acceptability of the taste of the samples containing caffeine nanochitosome compared to the samples containing free caffeine, which indicates the success of chitosomal nanocarriers in covering the bitter taste of caffeine. The results of measuring the color of different drink samples showed that there is no significant difference between the color of samples. The results of measuring pH and acidity did not show significant differences between different drink samples. The results of measuring the solubility of different drink powder samples showed that the samples containing caffeine nanochitosomes have low solubility compared to other drink powder samples. Also, the hygroscopic amount of the drink powder containing caffeine nanochitosomes was lower than the other samples, which is considered as an advantage for powdered products. The results obtained in this research showed that nanochitosomes are an efficient system in covering the bitter taste of caffeine. Therefore, with the production of caffeine nanochitosomes and its usage in the formulation of powder drinks, it is possible to produce energizing and desirable drinks without the need to use high amounts of sucrose.}, keywords = {bioactive compounds,Chitosan,Encapsulation,Instant drink powder}, title_fa = {تولید و ارزیابی نانوکیتوزوم ‌کافئین و پودر نوشیدنی فوری غنی‌سازی شده با آن}, abstract_fa = {در این پژوهش، ریزپوشانی کافئین در نانولیپوزوم‌های پوشش‌داده شده با کیتوزان به‌منظور کاهش طعم تلخ این ترکیب، و سپس تولید پودر نوشیدنی غنی‌شده با آن صورت گرفت. ابتدا نانوکیتوزوم‌ها، در نسبت‌های 1:9، 2:8 و 3:7 لستین-کلسترول، با روش هیدراتاسیون لایه نازک تهیه شدند. میانگین اندازه ذرات و پتانسیل زتا برای نسبت‌های مختلف لستین-کلسترول، به ترتیب در محدوده 6/443- 3/133 نانومتر و 96/40+ تا 36/48+ بدست آمد. نمونه کیتوزومی با نسبت 1:9 لستین-کلسترول، پایداری خوبی را در طول 60 روز نگهداری نشان داد. نانوکیتوزوم‌های دارای نسبت 1:9 لستین-کلسترول در فرمولاسیون نوشیدنی‌ها استفاده شدند. نمونه‌های نوشیدنی پس از تهیه شدن در فرمولاسیون‌های مختلف (نمونه‌های حاوی 3 و 5% محلول آزاد کافئین، نمونه‌های حاوی3 و 5% محلول کیتوزومی کافئین و نمونه‌ی شاهد)، مورد ارزیابی حسی قرار گرفتند که نتایج نشان‌دهنده‌ی مقبولیت طعم نمونه‌های حاوی نانوکیتوزوم کافئین در مقایسه با نمونه‌های حاوی کافئین آزاد بود. سپس، نوشیدنی‌ها از نظر خصوصیات فیزیکی و شیمیایی (pH، اسیدیته، درجه بریکس و رنگ) ارزیابی شدند. در ادامه، نوشیدنی‌ها با استفاده از دستگاه خشک‌کن انجمادی به شکل پودر درآمدند تا ویژگی‌های شاخص انحلال‌پذیری آب و هیگروسکوپی آن‌ها مورد ارزیابی قرار گیرند. نتایج حاصل از اندازه‌گیری میزان انحلال‌پذیری و هیگروسکوپی پودر نوشیدنی‌ها، نشان داد که نمونه‌های حاوی نانوکیتوزوم کافئین انحلال‌پذیری و هیگروسکوپی پایینی نسبت به سایر نمونه‌ها دارند. نتایج کلی این پژوهش، نشان‌دهنده‌ی کارآمد بودن نانوکیتوزوم‌ها در پوشش‌دهی طعم تلخ کافئین بود. لذا با تولید نانوکیتوزوم‌های کافئین و استفاده از آن در فرمولاسیون پودر نوشیدنی‌ها، می‌توان نوشیدنی‌های انرژی‌زا، بدون نیاز به استفاده از مقادیر بالای ساکارز تولید کرد.}, keywords_fa = {پودر نوشیدنی فوری,ترکیبات زیست فعال,ریز‌پوشانی,کیتوزان}, url = {https://ifstrj.um.ac.ir/article_43815.html}, eprint = {https://ifstrj.um.ac.ir/article_43815_508fd2f71a91f80db73638c246100450.pdf} }