Kinetic nitrogen isotope effects of 18 amino acids degradation during burning processes.

ABSTRACT: Understanding the nitrogen isotopic variations of individual amino acids (AAs) is essential for utilizing the nitrogen isotope values of individual amino acids (δ¹⁵N-AA) as source indicators to identify proteinaceous matter originating from biomass combustion processes. However, the nitrogen isotope effects (ε) associated with the degradation of individual amino acids during combustion processes have not been previously explored. In this study, we measured the nitrogen isotope values of residual free amino acids -following a series of controlled combustion experiments at temperatures of 160-240 °C and durations of 2 min to 8 h, as described in Part 1. δ¹⁵N values of proline, aspartate, alanine, valine, glycine, leucine, and isoleucine are more positive than their init

SUBMITTER: Zhu RG 

PROVIDER: S-EPMC11196629 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature