Optimization of carrier formulation to enhance stability and to control the release of bioactive compounds from spray-dried garlic extract | |
| Author | Dang Bao Pham |
| Call Number | AIT Thesis no.FB-21-06 |
| Subject(s) | Encapsulation Biochemistry Garlic--Composition |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Food Engineering and Bioprocess Technology, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no.FB-21-06 |
| Abstract | Nowadays, the application of antibiotics in animal husbandry is on the rise. This trend has adverse impacts on public health. Therefore, it is highly desirable to replace antibiotics with safe, natural compounds. Garlic extract has high content of biological compounds (di-allyl - tri - sulfide, N-acetyl cysteine, and allicin) with excellent antioxidant and antibacterial properties. However, they are not stable at the normal storage conditions and are easily lost to the environment during the production and use of animal feed products. It is necessary to develop an appropriate encapsulation method to enhance the stability and delivery efficiency of garlic bioactive compounds. This study optimized different encapsulation conditions (carrier ratio (1/10,1/20.1/30), mixing time (1-2h), mixing temperature (50-70oC) using the response surface method. From this study, the highest encapsulation efficiency was obtained (79.9%) was obtained at the temperature of 50.1oC, carrier ratio of 1/22,75, and mixing time of 1.55h. pH, temperature, and storage time were found to have a significant impact on the release capacity and stability of the encapsulated allicin, TPC and their antioxidant activity. The release of TPC from the fish pellet ranged from 62-79% at pH 3.0 and 58-79% at pH 8.6 in buffer solution. The obtained information can be useful for processors to consider the application of encapsulated garlic extract in feed products. |
| Year | 2021 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no.FB-21-06 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Food Engineering and Bioprocess Technology (FB) |
| Chairperson(s) | Loc Thai Nguyen; |
| Examination Committee(s) | Anal, Anil Kumar;Salin, Krishna R.; |
| Scholarship Donor(s) | Asian Institute of Technology Silver Anniversary Fellowship; |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2021 |