Maltodextrin was modified under DBD argon-plasma system. Under treatment, color of maltodextrin samples were significantly changed and could be distinguished by human eyes; free acid content is 2.25-folded increase; DE value is ~1.9-folded increase comparing to untreated maltodextrin. The viscosity was strongly correlated to treatment time. After modification, maltodextrin was depolymerized to reduce of around 1.56-folded of its average molecular weight and DP comparing to untreated sample. The ratio of alpha-helix/amorphous structure was not dramatically changed. FTIR spectra showed that the depolymerization and cross-linking formation was processed at various level. Short time of treatment was mainly resulted in the broken down of C-O-C bonds; whilst, new C-O-C linkage was created during long time of treatment.
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TẠP CHÍ KHOA HỌC VÀ CÔNG NGHỆ Giấy phép số37/GP-BTTTT (15/01/2021) Giấy phép sửa đổi, bổ sung số140/GP-BTTTT (05/3/2021) Đơn vị cấp phép:Bộ Thông tin và Truyền thông Cơ quan chủ quản:Trường Đại học Bách Khoa Hà Nội Phó tổng biên tập phụ trách:GS. Đinh Văn Phong