Microbial degradation of poly-(L-lactic acid) oligomers

Sari Karjomaa (Corresponding Author), Tapani Suortti, R. Lempiäinen, Johan-Fredrik Selin, Merja Itävaara

Research output: Contribution to journalArticleScientificpeer-review

33 Citations (Scopus)

Abstract

Biotic and abiotic degradation of poly-(l-lactic acid) (PLLA) oligomers of molecular weight (MW) 260–2880 g mol−1 has been studied in an aquatic aerobic headspace biodegradation test for six months.
Water soluble/dispersable PLLA oligomers (MW 260–550 g mol−1) biodegraded at 25 °C and at 58 °C. Larger, crystalline and hydrophobic oligomers (MW 550–2880 g mol−1) biodegraded only at 58 °C. Weight-average molecular weights of PLLA-oligomers decreased both during biotic and abiotic degradation, although slightly more during biotic degradation.
The surface and inner structures of biotically incubated PLLA oligomers were more porous than those of abiotically degraded oligomers. Thus abiotic hydrolysis of PLLA-structure to lactic acid appears to be an essential, but not the only explanation for its degradation.
PLLA polymer chain seems to be cleaved also enzymatically to lactic acid.
Original languageEnglish
Pages (from-to)333-336
JournalPolymer Degradation and Stability
Volume59
Issue number1-3
DOIs
Publication statusPublished - 1998
MoE publication typeA1 Journal article-refereed

Fingerprint

lactic acid
Lactic acid
oligomers
Oligomers
Lactic Acid
degradation
Degradation
molecular weight
Molecular weight
biodegradation
poly(lactic acid)
Biodegradation
hydrolysis
Hydrolysis
Polymers
Crystalline materials
Water
polymers

Cite this

Karjomaa, S., Suortti, T., Lempiäinen, R., Selin, J-F., & Itävaara, M. (1998). Microbial degradation of poly-(L-lactic acid) oligomers. Polymer Degradation and Stability, 59(1-3), 333-336. https://doi.org/10.1016/S0141-3910(97)00204-8
Karjomaa, Sari ; Suortti, Tapani ; Lempiäinen, R. ; Selin, Johan-Fredrik ; Itävaara, Merja. / Microbial degradation of poly-(L-lactic acid) oligomers. In: Polymer Degradation and Stability. 1998 ; Vol. 59, No. 1-3. pp. 333-336.
@article{dd2d8392e7814913848d4531f2487a38,
title = "Microbial degradation of poly-(L-lactic acid) oligomers",
abstract = "Biotic and abiotic degradation of poly-(l-lactic acid) (PLLA) oligomers of molecular weight (MW) 260–2880 g mol−1 has been studied in an aquatic aerobic headspace biodegradation test for six months. Water soluble/dispersable PLLA oligomers (MW 260–550 g mol−1) biodegraded at 25 °C and at 58 °C. Larger, crystalline and hydrophobic oligomers (MW 550–2880 g mol−1) biodegraded only at 58 °C. Weight-average molecular weights of PLLA-oligomers decreased both during biotic and abiotic degradation, although slightly more during biotic degradation. The surface and inner structures of biotically incubated PLLA oligomers were more porous than those of abiotically degraded oligomers. Thus abiotic hydrolysis of PLLA-structure to lactic acid appears to be an essential, but not the only explanation for its degradation. PLLA polymer chain seems to be cleaved also enzymatically to lactic acid.",
author = "Sari Karjomaa and Tapani Suortti and R. Lempi{\"a}inen and Johan-Fredrik Selin and Merja It{\"a}vaara",
year = "1998",
doi = "10.1016/S0141-3910(97)00204-8",
language = "English",
volume = "59",
pages = "333--336",
journal = "Polymer Degradation and Stability",
issn = "0141-3910",
publisher = "Elsevier",
number = "1-3",

}

Karjomaa, S, Suortti, T, Lempiäinen, R, Selin, J-F & Itävaara, M 1998, 'Microbial degradation of poly-(L-lactic acid) oligomers', Polymer Degradation and Stability, vol. 59, no. 1-3, pp. 333-336. https://doi.org/10.1016/S0141-3910(97)00204-8

Microbial degradation of poly-(L-lactic acid) oligomers. / Karjomaa, Sari (Corresponding Author); Suortti, Tapani; Lempiäinen, R.; Selin, Johan-Fredrik; Itävaara, Merja.

In: Polymer Degradation and Stability, Vol. 59, No. 1-3, 1998, p. 333-336.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Microbial degradation of poly-(L-lactic acid) oligomers

AU - Karjomaa, Sari

AU - Suortti, Tapani

AU - Lempiäinen, R.

AU - Selin, Johan-Fredrik

AU - Itävaara, Merja

PY - 1998

Y1 - 1998

N2 - Biotic and abiotic degradation of poly-(l-lactic acid) (PLLA) oligomers of molecular weight (MW) 260–2880 g mol−1 has been studied in an aquatic aerobic headspace biodegradation test for six months. Water soluble/dispersable PLLA oligomers (MW 260–550 g mol−1) biodegraded at 25 °C and at 58 °C. Larger, crystalline and hydrophobic oligomers (MW 550–2880 g mol−1) biodegraded only at 58 °C. Weight-average molecular weights of PLLA-oligomers decreased both during biotic and abiotic degradation, although slightly more during biotic degradation. The surface and inner structures of biotically incubated PLLA oligomers were more porous than those of abiotically degraded oligomers. Thus abiotic hydrolysis of PLLA-structure to lactic acid appears to be an essential, but not the only explanation for its degradation. PLLA polymer chain seems to be cleaved also enzymatically to lactic acid.

AB - Biotic and abiotic degradation of poly-(l-lactic acid) (PLLA) oligomers of molecular weight (MW) 260–2880 g mol−1 has been studied in an aquatic aerobic headspace biodegradation test for six months. Water soluble/dispersable PLLA oligomers (MW 260–550 g mol−1) biodegraded at 25 °C and at 58 °C. Larger, crystalline and hydrophobic oligomers (MW 550–2880 g mol−1) biodegraded only at 58 °C. Weight-average molecular weights of PLLA-oligomers decreased both during biotic and abiotic degradation, although slightly more during biotic degradation. The surface and inner structures of biotically incubated PLLA oligomers were more porous than those of abiotically degraded oligomers. Thus abiotic hydrolysis of PLLA-structure to lactic acid appears to be an essential, but not the only explanation for its degradation. PLLA polymer chain seems to be cleaved also enzymatically to lactic acid.

U2 - 10.1016/S0141-3910(97)00204-8

DO - 10.1016/S0141-3910(97)00204-8

M3 - Article

VL - 59

SP - 333

EP - 336

JO - Polymer Degradation and Stability

JF - Polymer Degradation and Stability

SN - 0141-3910

IS - 1-3

ER -