The use of high-performance liquid chromatography (HPLC) to assess the antioxidant activity of buckwheat husk and indicators of the oxidant-antioxidant system of laboratory animals

Kuznetsova, Еlena; Uchasov, D.S.; Кузнецова, О. В.; Bychkova, Tatyana; Brindza, Ján

doi:10.1145/3446434.3446497

Cited by 1 publication

(1 citation statement)

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“…It is widely cultivated around the world mainly for food production due to its high content of proteins, amino acids, fibre, vitamins and minerals [25]. Moreover, according to Kuznetsova et al [26], buckwheat husk is a source of flavonoids and phenolic acids, which, as shown by the outcomes of previous research on the use of phenolic-rich biomass, may be beneficial for the use as the UF resin filler. This type of husk was previously used as a filler for various polymeric materials, such as polyurethane-based composites [27], polypropylene-based composites [28], polyethylene-based composites [29] and poly(lactic acid)-based composites [30], and therefore, it can be an interesting choice for formaldehyde-based resin as well.…”

Section: Introductionmentioning

confidence: 99%

Modified Buckwheat Husk as a Filler for Urea–Formaldehyde Resin in Plywood Production

Kawalerczyk,

Walkiewicz,

Sedliačik

et al. 2024

Polymers

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The aim of the presented research was to determine the suitability of both non-modified and modified buckwheat husk (BH) as a filler for urea–formaldehyde adhesive in plywood production. The effect of two modification methods, acetylation and silanization, was investigated. Infrared spectroscopy outcomes confirmed that both acetylation and silanization of the filler had occurred. Based on the results, it was found that the introduction of BH had a significant effect on both the adhesive properties and the characteristics of the manufactured plywood. The application of non-modified husks led to a reduction in viscosity and an extension of the gelation time, and the produced plywood boards were characterized by reduced bonding quality and increased delamination. Modification of the husk surface by acetylation and silanization with 3-aminopropyltriethoxysilane contributed to the noticeable improvement in the resin properties. On the other hand, the improvement in plywood properties, consisting of the increase in bonding quality and reduced delamination, was observed only in the case of the silanized husk. Furthermore, the use of non-modified and acetylated husk did not significantly influence the formaldehyde emission. The reduction in the investigated emission of formaldehyde was observed only in the case of variants containing 15 and 20% of silanized buckwheat husk.

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