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Yongyuth Theapparat Sunisa Khongthong Prawit Rodjan Kowit Lertwittayanon Damrongsak Faroongsarng 《林业研究》2019,(3):1139-1148
Physicochemical characteristics and in vitro antioxidant activities of four pyroligneous acids carbonized from the wastes of wood species including Mangosteen (Garcinia mangostana Linn.), Durian (Durio zibethinus L.), Rambutan (Nephelium lappaceum L.), and Langsat (Lansium domesticum Serr.) were assessed. Appearing as transparent liquors with pH 3.9–4.2, the pyroligneous acid samples under test possessed acetic acid (23.22–25.46%) as the dominant component. The total soluble tar, total acid, and water content were 0.15 - 0.28 wt%, 99–192 mg KOH/g and 84.5–93.5 wt%, respectively. Phenolic compounds namely: 2,6-dimethoxyphenol (6.88–9.69%),phenol (2.97–5.88%), 4-methylsyringol (3.10–3.56%), guaiacol (2.36–3.55%), and 2-methoxy-4-methylphenol (1.08–1.28%) were found. All had in vitro antioxidant activities especially mangosteen pyroligneous acid, which showed activity roughly similar to BHT (P>0.05) against anti-lipid peroxidation. Nitric oxide scavenging capacities of all pyroligneous acids were significantly higher than BHT (P<0.05). Our results suggest that pyroligneous acids from the four types of branch waste could be used as sources of beneficial natural antioxidants, possibly as food or feed additives to protect against lipid peroxidation, and potentially also in veterinary medicine in anti-inflammatory products. 相似文献
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DusaneeThanaboripat KowitNontabenjawan KwanruenLeesin DetchpolTeerapiannont OrataiSukcharoen RararatRuangrattanamatee 《林业研究》1997,(1)
INTRoDUCTIONANatoxinsarctoxicsccondarymctabolitCspro-ducedbyAsPergillus~s,A.parastticusandA.nomius(Kurbzmanetal,l987).ThescfUngicangrowreadilyonawidevarictyofagriculturalconunoditicsandPoschealthhazardtobothhumanandanimals.ANa-toxinsareacutClytoxic,carcin… 相似文献
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Dusanee Thanaboripat Kowit Nontabenjawan Kwanruen Leesin Detchpol Teerapiannont Oratai Sukcharoen Rararat Ruangrattanamatee 《林业研究》1997,8(1):39-42
The inhibitory effect of crude extracts of garlic, clove and carrot at concentrations of 20,000, 40,000, 60,000, 80,000 and
100,000 μg/mL on growth ofAspergillus flavus and aflatoxin production in rice was investigated. The results showed that garlic, clove and carrot could inhibit the growth
ofA. flavus and aflatoxin production. Garlic and clove at 100,000 μg/mL highly reduced the level of aflatoxin from 5.94 to 0.15 and 0.06
μg/g respectively whereas carrot at 20,000 μg/mL reduced the most level of aflatoxin from 5.94 to 0.03 μg/g. Garlic, clove
and carrot at 100,000μg/mL also inhibited the mould growth. The most effective herb for inhibiting the growth ofA. flavus and aflatoxin production was garlic.
Responsible Editor: Sun Yueqi 相似文献
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