期刊
FOOD AND BIOPROCESS TECHNOLOGY
卷 14, 期 7, 页码 1301-1310出版社
SPRINGER
DOI: 10.1007/s11947-021-02641-y
关键词
Antioxidant activity; Mechanical properties; Starch; Extrusion
资金
- National Council for Scientific and Technological Development (CNPq) -Brazil [150102/2018-6]
This study developed an active biodegradable packaging for food using B. dracunculifolia leaf powder as a natural antioxidant. The results showed that B. dracunculifolia improved the tensile strength and elongation of the films, and the antioxidant activities of the films were proportional to the B. dracunculifolia content.
Baccharis dracunculifolia DC (Asteraceae) is a Brazilian native plant that has excellent antioxidant properties. This work aimed to develop an active biodegradable packaging for food using B. dracunculifolia leaf powder as a natural antioxidant. Biodegradable films were produced by blown extrusion with cassava starch, poly (butylene adipate-co-terephthalate), glycerol, and leaf powder of B. dracunculifolia (1.25, 2.5, and 5.0 wt.%), and the films were tested as active packaging for different food simulants. The B. dracunculifolia improved the tensile strength and elongation of the films. The films' antioxidant activities were proportional to the B. dracunculifolia content with the DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate), ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)), and TPC (Total Phenolic Compounds), reaching 3.95 mu mol of Trolox g film(-1), 10.60 mu mol of TEAC g film(-1), and 0.97 mg GAE g film(-1), respectively. B. dracunculifolia is an excellent font of natural antioxidants, and it can be used in active biodegradable packaging for food products.
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