Background and Objective: Beetroot juice is a biological antioxidant and acts as health-promoting minerals as well as soluble fibres and vitamins. This study aimed to encapsulate the Beetroot Juice Powder (BJP) by the conjugate sodium caseinate (NaCas) and Maltodextrin (MD) to protect it from environmental conditions. Produced flavoured acid beverage using BJP encapsulated using conjugates. Materials and Methods: Nano-encapsulation of BJP (20, 30, 40 mg g1) and determine the encapsulation efficiency, size and zeta potential. Rats were divided into 4 groups as follows, negative control, positive control and 2 test groups that received free BJP or encapsulated BJP. All rats except the negative control group were injected with CCl4 twice a week. Results: The NaCas-MD conjugate has the advantage over the NaCas-MD complex of higher stability and BJP binding, also showing high encapsulation efficiency (>93.75%) of different levels of BJP. The flavoured beverage from the addition of BJP encapsulated by conjugate has better sensory and technological properties than fortified with BJP in the complex. Injection with CCl4 leads to a decrease in body weight, serum parameters including, protein, albumin, GSH, CAT and SOD, also increase ALT, AST, ALP and liver weight. Moreover, a variable pathological alteration in liver tissue was found. At the end of the experiment receiving encapsulated beetroot juice led to improvement in all above body and liver weight, all biochemical parameters and histopathological elevation. Conclusion: Thus, it could be concluded that flavoured beverage containing BJP encapsulated by conjugate is of acceptable quality and high antioxidant activity. Also, it has a remarkable protective effect against acute hepatotoxicity.
Tarek N. Soliman, Samera H. Shehata and Safaa A. Salem, 2022. Beetroot Nanoencapsulation in Flavored Beverage and its Effect as Hepatoprotective Agent in Rats. Pakistan Journal of Biological Sciences, 25: 803-815.