Effect of Tangerine Oil against Aspergillus niger Identified from Raw and Boron Treated Rubberwood

Jantamas, S.; Matan, Narumol; Matan, Nirundorn

doi:10.7763/ijesd.2013.v4.382

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…of its colony growth's coverage to the total surface area of the wood samples. The value was then converted into a scoring system according to Jantamas et al (2013) as presented in Table 1.…”

Section: Isolation Of Stain Fungi For Significant Growthmentioning

confidence: 99%

Morphological and molecular features of stain fungi infecting rubberwood (Hevea brasiliensis)

et al. 2021

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Abstract. Nandika D, Arinana, Salman ABA, Putri JY. 2021. Morphological and molecular features of stain fungi infecting rubberwood (Hevea brasiliensis). Biodiversitas 22: 5408-5416. In the southeast Asia region, particularly Indonesia, Thailand, and Malaysia, rubberwood (Hevea brasiliensis Muell. Arg.) has been widely used as a raw material in various industries particularly furniture manufacturing. However, rubberwood is highly susceptible to fungal attack due to its lack of heartwood formation. A laboratory study was conducted to investigate the morphological and molecular features of stain fungi infecting rubberwood. A total of five isolates of stain fungi belonging to three genera were identified based on internal transcribed spacer (ITS) and morphological features. All isolates belong to Order Eurotiales with each genus being Paecilomyces, Aspergillus, and Penicillium. The highest growth rate on wood samples was shown by Aspergillus chevalieri section Aspergillus and Paecilomyces maximus or P. formosus with values of 86.57% and 86.22%, respectively. All of the stain fungi genera caused varied level of discoloration on wood samples with dark grayish and very dark grayish as the more frequent color found. Quantitatively, the highest discoloration was shown by A. chevalieri section Aspergillus (?E = 27.60) and P. maximus or P. formosus (?E = 16.69). These species can be considered as newly stain fungi recorded infecting rubberwood in Indonesia. In addition, discoloration caused by these two stain fungi was the worst.

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Section: Isolation Of Stain Fungi For Significant Growthmentioning

confidence: 99%

Morphological and molecular features of stain fungi infecting rubberwood (Hevea brasiliensis)

et al. 2021

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“…The percentage growth of isolate to the surface area of the wood test samples was represented by score. Score 0 indicated that there is no growth of isolate on wood test samples and scores 5 indicated the heavy stain fungi growth, which was 0: no growth, 1: 20% growth of stain fungi on wood test samples, 2: 40%, 3: 60%, 4: 80% and 5: 100% (Jantamas et al 2013).…”

Section: Isolation and Selection Of Fungimentioning

confidence: 99%

Selection of stain fungi on rubberwood (Hevea brasiliensis) and its growth response against chitosan

2020

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Abstract. Salman ABA, Sudirman LI, Nandika D. 2020. Selection of stain fungi on rubberwood (Hevea brasiliensis) and its growth response against chitosan. Biodiversitas 21: 4501-4508. Rubberwood (Hevea brasiliensis Muell. Arg.) is one of the most important raw materials in furniture industry in South East Asian countries, particularly in Indonesia, Thailand and Malaysia. However, due to its susceptibility to stain fungi attack, wood preservative is needed to processing this material, which has both significant cost and environmental implications. A laboratory study was conducted to identify the seasoned rubberwood attacking stain fungi and to evaluate the bioactivity of chitosan in inhibiting the stain fungi’s growth. Isolation fungi from seasoned rubberwood were obtained firstly then selection isolates were conducted in the rubberwood test samples. Isolates with the highest percentage growth on wood test samples would identify based on internal transcribed spacer (ITS) region. Chitosan were prepared in four concentration 0, 0.5, 1 and 2% (w/v). Two isolates were showed the highest percentage growth on wood test samples after six weeks, which were 90.6% for isolate code I4 and 96.2% for II4 and both isolates gained scores 5. The two isolates were identified as Aspergillus foetidus for I4 and Aspergillus aflatoxiformans for II4. Aspergillus foetidus and A. aflatoxiformans would be the newly recorded species and this is the first report about species description from rubberwood in Indonesia. The inhibition rate was increased when chitosan concentration was increased from 0 to 2%. Chitosan concentration 2% inhibited the growth of A. foetidus in 20.28%, but there is no inhibition showed on A. aflatoxiformans. The addition of chitosan in medium can increase the growth of A. aflatoxiformans and forming clear zone around the colony.

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“…Essential oils are natural complex compounds as a result of secondary metabolites from aromatic plants, which play a role in plant protection against pathogens [6]. The main constituents of citronella oil are Citronellal (27.5%), geraniol (20.4%), citronellol (13.4%) [7]. Lemongrass oil is used as an antispasmodic, rubefacient, stimulant, insect repellent, carminative, and diaphoretic [8].…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that the essential oils inhibited the germination of urediniospores H. Vastatrix [11], had antifungal activity against Penicillium [12], the effectiveness of clove oil (Syzygium aromaticum) against Venturia inaequalisstrains [13], eugenol oil nanoemulsion protects cotton seeds from Fusarium wilt [14], inhibits the germination of Aspergillus flavus spores in rubberwood [7].…”

Section: Introductionmentioning

confidence: 99%

The effectiveness of essential oils as a biofungicide and potassium fertilizers in control of rubber leaf fall disease (Corynespora sp.)

2023

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Corynespora causes leaf fall disease in rubber plants. Control can be done with bio fungicides and potassium fertilizer. This study aims to determine the effectiveness of essential oils and potassium fertilizer in controlling rubber leaf fall disease. The research was conducted from January to December 2018 in Landak Regency, West Kalimantan. The study used a randomized block design with 13 treatments repeated 3 times. The treatment is without biofungicide and KCl, citronella oil + (KCl 250 g, 312.5 g, and KCl 375 g), clove oil + (KCl 250 g, 312.5 g, and 375 g), liquid smoke + (KCl 250 g, 312.5 g, and 375 g), chemical fungicides (mancozeb) + (KCl 250 g, 312.5 g, and 375 g). The results showed that citronella oil, clove oil, and liquid smoke had the same inhibitory power as chemical fungicides. The combination of citronella oil with fertilizer KCl 312.5 g/plant/year and clove oil with KCl 375 g/plant/year can reduce the intensity of Corynospora attack up to 7.33% with inhibition of rubber leaf fall disease reaching 90.09% and can maintain yield of 28.1-28.3 g/tapping (94.33%). KCl fertilizer increased the lignin content of rubber leaves by 22.63%.

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Effect of Tangerine Oil against Aspergillus niger Identified from Raw and Boron Treated Rubberwood

Cited by 7 publications

References 13 publications

Morphological and molecular features of stain fungi infecting rubberwood (Hevea brasiliensis)

Morphological and molecular features of stain fungi infecting rubberwood (Hevea brasiliensis)

Selection of stain fungi on rubberwood (Hevea brasiliensis) and its growth response against chitosan

The effectiveness of essential oils as a biofungicide and potassium fertilizers in control of rubber leaf fall disease (Corynespora sp.)

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