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January 25, 2026Mokuzai GakkaishiOpen Access

Initiatives for Drafting JAS Proposals on Analytical Testing Methods for Specific Extractive Components in Dried Solid Japanese Cedar (Cryptomeria japonica)III.

Akiko Isa Koki Fujita Tatsuya Ashitani Kazuki Tani Hisayoshi Kofujita Noriyuki Igura Masakazu Kato Hiroto Suhara Toru Mitsunaga Noboru Fujimoto Kuniyoshi Shimizu

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Key Points

Terpene concentrations ranged from 1.0 to 8.0 g/kg, indicating variability in testing methods.
HorRat values showed acceptable reproducibility for low to medium concentration samples, confirming method reliability.
Assessment through gas chromatography coupled with mass spectrometry revealed significant between-laboratory differences.
Findings highlight the importance of standardizing testing methods for effective terpene analysis in cedar.

Implication

This inter-laboratory study evaluates terpenes in Japanese cedar, suggesting reliable analytical methods.

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Cite This Study

Isa et al. (2026) studied this question.

synapsesocial.com/papers/69a75ccdc6e9836116a25fc4 https://doi.org/10.2488/jwrs.72.21

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Keep reading

Synapse has enriched 5 related papers. Consider them for comparative context:

1Protocol for the design, conduct and interpretation of method-performance studies: Revised 1994 (Technical Report)Original Research · 1995 · 435 citations
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