HomeIngredientEffect of excipient wall materials on the development of ginger oleoresin microcapsules: Assessing the physicochemical, antioxidant and structural properties

Effect of excipient wall materials on the development of ginger oleoresin microcapsules: Assessing the physicochemical, antioxidant and structural properties

August 20, 2022

J Sci Food Agric. 2022 Jul 6. doi: 10.1002/jsfa.12113. Online ahead of print.

ABSTRACT

BACKGROUND: Ginger oleoresin is prone to destruction from air, light and high temperatures and has a limited shelf life if kept improperly. Its viscous and sticky characteristics also make it difficult to handle and utilise. These issues can be solved via microencapsulation. The goal of this research was to evaluate how different wall materials affected the properties of microencapsulated ginger oleoresin powder.

RESULTS: Ginger oleoresin microcapsules were developed through spray drying technique using gum Acacia (GA) and whey protein isolate (WPI) as wall materials. The characteristics of the obtained powder including water activity, wettability and encapsulation efficiency were evaluated, correspond to value of 0.20, 90.54 s, 84.15 % for whey protein isolate based ginger oleoresin powder. Whey protein isolate microcapsules also exhibited high phenolic content (27.26 mg gallic acid equivalent g-1 ), total flavonoid (2.94 mg quercetin equivalent g-1 ) and 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity (68.71%) than GA microcapsules. Although both WPI and GA based oleoresin microcapsules displayed poor flowability, but possessed metastable amorphous state indicated by x-ray diffraction. Gum Acacia (GA) encapsulated oleoresin microcapsules showed a significant increase in particle size 1983.19 nm than WPI oleoresin microcapsules. FTIR analysis of developed oleoresin microcapsules indicated no change in molecular structure except the variation in peak intensity.

CONCLUSION: Whey protein isolate proved to be more efficient to maintain the physicochemical and antioxidant activity of spray dried ginger oleoresin powder. The present study revealed whey protein based oleoresin powder could be used as therapeutic agent in various nutraceutical applications. This article is protected by copyright. All rights reserved.

PMID:35794734 | DOI:10.1002/jsfa.12113

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About The Author

Patrick Blanchard MD

Meet Dr. Blanchard Dr. Blanchard’s medical practice is an embodiment of Integrative health which brings conventional and complementary approaches together in a coordinated way. Conveniently located in sunny Florida and over the internet with ValiseMD’s secure HIPPA compliant telXmed servers. Since 1994, patients with a wide range of challenging medical problems have achieved optimum health using the best of natural medicine, judiciously combined with high-tech innovations. Breakthroughs are often achieved even after patients have consulted mainstream specialists and holistic practitioners. Dr. Blanchard is founder and CEO of ValiseMD, Inc. He is board certified in Family Medicine since 1994 and awarded Fellow of the American Academy of Family Physicians in 2001. He received the ‘Teacher of the Year’ award from the University of Kansas School of Medicine at completion of his residency in Family Medicine. He completed a fellowship at Wake Forest University in the field of vascular neurosonology. He holds a medical patent in the field of Gastroenterology. He holds an unrestricted license to practice medicine and surgery in Florida. He started his medical career as a Emergency Medical Technician, then as a Paramedic and later a Medical Doctor.