Biomolecules and Chemistry in Everyday Life 2 Question 7
8. Poly- $\beta$-hydroxybutyrate-Co- $\beta$-hydroxyvalerate (PHBV) is a copolymer of ……
(2019 Main, 12 Jan I)
(a) 3-hydroxybutanoic acid and 2-hydroxypentanoic acid
(b) 2-hydroxybutanoic acid and 3-hydroxypentanoic acid
(c) 3-hydroxybutanoic acid and 4-hydroxypentanoic acid
(d) 3-hydroxybutanoic acid and 3-hydroxypentanoic acid
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Answer:
Correct Answer: 8. (d)
Solution:
- Poly- $\beta$-hydroxy butyrate Co- $\beta$-hydroxyvalerate (PHBV) is a copolymer of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid. It is used in speciality packaging, orthopaedic devices and in controlled release of drugs. PHBV undergoes bacterial degradation in the environment. The reaction involved is as follows :
(PHBV)
