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FLORAM receives Impact Factor

We are pleased to announce that FLORAM has received its first impact factor rating in the 2022 Journal Citation Reports (JCR).

Now FLORAM has the highest impact factor among Brazilian Forest Sciences journals.
Floresta e Ambiente
https://www.floram.org/article/doi/10.1590/2179-8087.058916
Floresta e Ambiente
Original Article Wood Science and Technology

Measurement of Tannic Substances in Forest Species

Jordânia Xavier de Medeiros; Leandro Calegari; Girlânio Silva; Elisabeth Oliveira; Alexandre Pimenta

http://dx.doi.org/10.1590/2179-8087.058916 FLORAM, vol.25, n3, e20160589, 2018
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Abstract

ABSTRACT: This study aimed to quantify the tannic content of the barks and fruit of angico-vermelho, jurema-preta and acacia-negra using skin powder as detanizador agent. Materials from these species were ground and classified, with 12.5g of air dried particles subjected to extraction using a steam jacket type extractor to obtain 1000 ml of solution, using a completely randomized analytic design. The solution was evaluated using four treatments: angico bark; jurema bark; acacia bark and angico fruit. Three replicates per treatment were realized and subrepetitions were analyzed in triplicate. The results were interpreted by comparison of means with Tukey test at 5% significance. Best results in terms of total solids content, were observed in acacia bark (67.2%), differing statistically for angico bark (63.5%). The soluble solids content, in turn, was superior to angico bark (60.3%), differing statistically from acacia bark (49.8%). No statistically significant differences for tannin content were observed between acacia and angico barks, which presented values of 28.4 and 26.8%, respectively.

Keywords

skin powder, extractive, vegetable tannins

References

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