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This study aims to understand how different pH levels of tartaric acid affect the degradation of palm leaf manuscripts.

Degradation behavior of palm-leaf manuscripts in tartaric acid environments with different pH levels

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Randomized trial investigates degradation of palm leaf scriptures in different pH levels, suggesting preservation needs.

This study aims to understand how different pH levels of tartaric acid affect the degradation of palm leaf manuscripts.
Palm leaf scripts were immersed in tartaric acid at pH 6.5, 5.0, and 3.0 for 30 days.
Scanning electron microscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction techniques analyzed the degradation.
Structural assessments focused on cellulose and hemicellulose degradation and changes in crystallinity.
As pH decreased, cellulose and hemicellulose degradation accelerated, with hemicellulose being most affected.
Crystallinity decreased from 28.0% to 21.8%, indicating structural damage.
Significant color changes (ΔE increase) and enhanced water absorption were observed, along with severe microstructural damage.

Yang et al. (2026) studied this question.

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