DAYA HAMBAT EKSTRAK KULIT JATI (Tectona grandis Linn F) TERHADAP PERTUMBUHAN JAMUR PELAPUK KAYU Schizophyllum commune Fries

Abstract

The aim of the research was to examine the antifungal activity and the most effective concentration of teak bark (Tectona grandis Linn F) extract in inhibiting wood decay fungi Schizophyllum commune Fries. Teak bark was derived from BKPH Ledok, Sambong district, Blora Regency, West Java. The Teak bark made into particle with size pass of 40 mesh and retained 60 mesh. Then one kilogram of teak bark particle was maceration with 10 liter of aquadest. The extract then mixes with potatoes dextrose agar (PDA) with several concentration i.e. 0%, 0.25%, 0.5%, 0.75% and 1% and pour into petri dish. One isolate of Schizophyllum commune was put in the center of PDA in each petri dish then incubated for nine days. The bioactive compound of extract teak bark was evaluation used phytochemical screening. Result of the research showed that teak bark extract at concentration 0.25% and 0.5% has antifungal activity values was 27.98% and 40.38% and categorized as medium inhibition growth of S. commune. Meanwhile at concentration 0.75% and 1% the AFA values was 59.94% and 65.51% categorized as strong inhibition growth of S. commune. The bioactive compounds from phytochemical screening test were alkaloid, flavonoid, terpenoid, fenolik, antrakuinon, and saponin. The extract of teak bark with concentration 0.75% and 1% are the most effective concentrations in inhibiting the growth of wood decay fungi S. commune Fries.Keywords : antifungal, phytochemical screening test, Schizophyllum commune, Tectona grandis

Phytochemical Analysis and Escherichia coli Anti-bacteria Activity of Teak (Tectona grandis Linn. f) Leaves Extract

“…The same results in the study showed positive results containing steroid compounds [2]. In contrast to research bark teak showed negative results containing steroid [14]. Steroid compounds can cause damage to bactericidal liposomes, steroids also cause steroids as antibacterials related to lipid membranes and sensitivity to steroid components which cause leakage in liposomes.…”

“…Testing the flavonoid compounds' content in teak leaves' extract showed positive results. The same results in research on teak bark also showed the presence of flavonoid compounds [14]. Flavonoids can act as antifungals because they have phenolic compounds that can denature proteins and can damage cell membranes that are irreversible (irreversible) [8].…”

Anti-termite Activity of Tamanu Bark Extract (Calophyllum inophyllum L.)

“…Among these, 85% are classified as having low durability, while only 15% are considered durable. The low durability of wood increases its vulnerability to wood-destroying organisms such as termites, wood rot fungi, and other wood borers (Arinana et al, 2022;Ariyanti et al, 2016;Hutabarat et al, 2019;Luth, 2020).…”

“…The financial impact attributed to termite activity surpasses that caused by fires, storms, or floods (Nandika et al, 2015). Enhancing the resistance of wood to degradation by organisms, namely, subterranean termites, using preservation methods can mitigate these losses (Daviyana et al, 2013;Hutabarat et al, 2019).…”

Utilization of Wood Vinegar as a Natural Preservative for Sengon Wood (Falcataria moluccana Miq.) against Fungal Attack (Schizophyllum commune Fries)

“…Most wood harvested from forests currently has a low durability and strength (Hutabarat et al 2019). In Indonesia, the supply of low-durability woods reaches 80-85% (Yunasfi 2008).…”