Losses in timber industries are considerable due to lack of post-harvest care, transport,
and storage. When post-slaughter care is not properly taken care of, part of the logs
arriving at the industrial yard has already been significantly degraded by the action of
xylophagous organisms. In the Amazon region, these effects are greater due to
incorrect transport and storage logistics that subject the wood to biotic and abiotic
agents. In this way, quality control methodologies or techniques that generate
subsidies for decision-making are important to guarantee greater yield and safety in
the various applicability that wood can have within the industry. In this scenario, the
use of non-conventional wood evaluation techniques can be an important tool due to
the reduced cost and time used in the analyzes with a view to directing the best way
to use this material. The objective of this work is to evaluate if the crystallinity and the
chemical structure of the wood obtained by X-ray diffraction and Fourier transform near
infrared spectrometry - (FTNIR) can help in the analysis of degradation by fungi and
insects in stored logs of Amazonian species in a storage yard. The material used came
from the log storage yard of a forestry company, in the rural area of Santarém. For this
study, was used material from 05 (five) commercial species that had been stored in an
open yard for six months. The scale of degradation by fungi and insects, the moisture
content of the logs and the chemical properties (content of total extractives, lignin and
holocellulose), the crystallinity and the chemical structure of the wood obtained by Xray diffraction and infrared spectrometry were evaluated. The position of the logs and
in the stacks associated with the storage time exerted some influence on the
quantitative and qualitative chemical characteristics of the wood. And with that, it was
also observed that the techniques of X-Ray diffraction and Fourier transform near
infrared spectrometry - (FTNIR) showed potential for analysis of degradation by fungi
and insects in logs of Amazonian species stored in a yard of storage.
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