| Author | Pokharel, Abhishek |
| Call Number | AIT Thesis no.FB-19-06 |
| 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-19-06 |
| Abstract | Anthocyanins (hydrosoluble) and carotenoids (liposoluble) both were encapsulated by single wall material n-octenyl succinic anhydride starch using fluidized bed of inert particles. The effect of three parameters; starch, oil-to-starch ratio, and temperature on the encapsulating and yield of both compounds were studied and analyzed using Box-Behnken design in response surface methodology (RSM). The optimal condition for encapsulation of both anthocyanin and carotenoids were 30% starch concentration, 30% oil-to-starch ratio and 75.6oC. The powder obtained was characterized according to physiochemical and functional properties, morphology, retention, and encapsulation efficiency. Under these condition encapsulation efficiency of carotenoids, carotenoids retention, encapsulation efficiency of anthocyanin, anthocyanin retention were 64.92%, 5.884 mg/g, 40.8%, and 0.08 mg/g respectively. The density, structure, and modification of the wall material positively influenced the encapsulation efficiency. It was also observed that a new method of encapsulation can be implemented, which uses relatively low temperature than spray drying. The storage stability of powder at different temperature was studied and its control release against the digestive enzyme, acidity and alkaline condition of the human digestive tract was studied which showed that the compound can be preserved. The powder application in the food industry was also studied by incorporating into yogurt which gave a positive result in terms of fortification and color. OSA modified starch can be used to encapsulate both anthocyanins and carotenoids using fluidized bed of inert particles. |
| Keyword | OSA-high amylose starch; modified starch; anthocyanin; carotenoids; fluidized
bed dring, inert particle |
| Year | 2019 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no.FB-19-06 |
| 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;Datta, Avishek ; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship ; |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2019 |