Microbial Degradation Behavior in Seawater of Polyester Blends Containing Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx)

• Published in: Marine drugs Vol. 16; no. 1; p. 34
• Main Authors: Sashiwa, Hitoshi, Fukuda, Ryuji, Okura, Tetsuo, Sato, Shunsuke, Nakayama, Atsuyoshi
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 17.01.2018; MDPI
• Subjects: 3-Hydroxybutyric Acid - chemistry; Biochemical oxygen demand; Biocompatible Materials - chemistry; Biodegradable materials; Biodegradation; blendsurface morphology; Caproates - chemistry; degradation; Materials Testing - methods; microbial; Microbial degradation; Microorganisms; Mixtures; Oxygen demand; Oxygen requirement; poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx); Polyester resins; Polyesters; Polyesters - chemistry; Polylactic acid; Seawater; Seawater - chemistry; Surface Properties; Total oxygen demand; poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx); degradation; microbial; seawater; blendsurface morphology
• ISSN: 1660-3397; 1660-3397
• DOI: 10.3390/md16010034

The microbial degradation behavior of poly(3-hydroxybutyrate- -3-hydroxyhexanoate) (PHBHHx) and its compound with several polyesters such as poly(butylene adipate- -telephtharate) (PBAT), poly(butylene succinate) (PBS), and polylactic acid (PLA) in seawater was tested by a biological oxygen demand (BOD) method. PHBHHx showed excellent biodegradation in seawater in this study. In addition, the biodegradation rate of several blends was much influenced by the weight ratio of PHBHHx in their blends and decreased in accordance with the decrement of PHBHHX ratio. The surface morphology of the sheet was important factor for controlling the biodegradation rate of PHBHHx-containing blends in seawater.