Teerarak, Montinee
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Preferred name
Teerarak, Montinee
Alternative Name
Teerarak, M.
Main Affiliation
Email
montinee.te@kmitl.ac.th
35 results
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Item type:Publication, Potential antioxidant and lipid peroxidation inhibition of Phyllanthus acidus leaf extract in minced pork(2017-09-01); ; Objective: This study investigated the effect of extraction solvents on antioxidant bio-active compounds as well as potential antioxidant and lipid peroxidation inhibition of Phyllanthus acidus (P. acidus) leaf extract in minced pork. Methods: The effect of various solvent systems of water, 25%, 50%, 75% (v/v) ethanol in water and absolute ethanol on the extraction crude yield, total phenolic content, total flavonoid content and in vitro antioxidant activities of P. acidus leaves was determined. In addition, antioxidant activities of the addition of crude extract from P. aciuds leaves at 2.5 and 5 g/kg in minced pork on 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, 2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical cation decolorization, reducing power and inhibition of lipid peroxidation (thiobarbituric acid reactive substances; TBARS) were determined. Moreover, sensory evaluation of the samples was undertaken by using a 7-point hedonic scale. Results: The results showed that the highest crude yield (2.8 g/100 g dry weight) was obtained from water which also had the highest recovery yield for total phenolic content, total flavonoid content and the strongest antioxidant activity. The addition of crude water extract from P. acidus leaves was more effective in retarding lipid peroxidation and higher antioxidant activity than control and butylated hydroxytoluene in minced pork. In particular, the samples containing P. acidus extract had no significant effect on the sensory scores of overall appearance, color, odor, texture, flavor, and overall acceptability compared to the control. Conclusion: Water solvent was an optimally appropriate solvent for P. acidus leaf extraction because of its ability to yield the highest amount of bio-active compounds and in vitro antioxidant property. Particularly, P. acidus crude water extract also strongly expressed the capacity to retard lipid oxidation, radical scavenging, radical cation decolorization and reducing power in minced pork. The results of this study indicated that P. acidus leaf extract could be used as natural antioxidant in the pork industry. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Characterization of Diaporthe fungal extract composition and phytotoxicity on the aquatic noxious weed Eichhornia crassipes: inhibitory effects on photosynthetic machinery and membrane integrity(2025-01-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effects of natural herbicide from tagetes erecta on echinochloa crus-galli (L.) beauv(2018-01-01); ; We studied the inhibitory effects of leaves extracts of Tagetes erecta on weed-seed germination and the mechanisms involved. Hydroethanolic crude extract (OR) from Tagetes erecta dried leaves was partitioned into four fractions: hydrolyzed (HY), aqueous (AQ), neutral (NE) and acidic (AE). The inhibitory effects of crude extracts and its fractions were evaluated on germination and seedlings growth of Echinochloa crus-galli (L.) Beauv. The total phenolic and flavonoid contents of each fraction were also determined. Germination and seedling growth were drastically inhibited by HY and AE followed by NE, OR and AQ. The HY and AE fractions had higher concentrations of both phenolics and flavonoids than other fractions. The HY fraction was selected as most potent for development as natural herbicide due to its high yield and strong inhibitory effects. The HY fraction was formulated into a soluble concentrate product (SCT) and its inhibition potential and modes of action were investigated. The SCT drastically inhibited the seed germination of E. crus-galli, inhibiting both imbibition, α-amylase activity and also seedling growth. Cytogenetic bioassays of SCT on root-tip cells of Allium cepa L. showed that it inhibited the mitosis and thereby the cell division. It is likely that a natural herbicide may be developed from the hydrolyzed fraction of a hydroethanolic extract of Mexican marigold leaves. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Oxidative damage in Echinochloa crus−galli seeds exposed to Diaporthe sp. (Diaporthales, Ascomycota) fungal extract during germination(2024-01-01); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Potential allelopathic effects of Suregada multiflorum and the influence of soil type on its residue's efficacy(2010-09-01); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Chemical composition and herbicidal action of essential oil from Tagetes erecta L. leaves(2018-12-15); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Impact of Nigrospora oryzae-Derived Natural Products on Photosynthesis and Oxidative Stress in Eichhornia crassipes(2025-01-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Essential oil from ginger as a novel agent in delaying senescence of cut fronds of the fern (Davallia solida (G. Forst.) Sw.)(2019-10-01); Rabbit's foot fern (Davallia solida (G. Forst.) Sw.) is traded as cut floral greens and commonly used in orchid flower arrangements and bouquets; however, its use is limited by its relatively rapid postharvest yellowing and desiccation. This study was designed to investigate the chemical profile of the essential oil from ginger rhizome (Zingiber officinale Roscoe) and to determine the oil's effectiveness in extending the postharvest quality of rabbit's foot fern. Essential oil was extracted from ginger rhizomes by hydrodistillation. The percentage composition of major identified compounds was citral (29.91%), zingiberene (13.3%), α-farnesene (11.68%), 1,8-cineole (10.60%), and β-sesquiphellandrene (6.14%). The ginger essential oil was applied in emulsion form to rabbit's foot fern fronds as a pulse (25, 50, or 100 mg L<sup>−1</sup>) or a holding solution (5, 10 and 20 mg L<sup>−1</sup>). Pulse treatments were applied for 6 h before the fronds were transferred into a holding solution containing either distilled water or essential oil of ginger. Control fronds received distilled water as both pulsing and holding solutions. Rabbit's foot fern pulsed with 25 mg L<sup>−1</sup> essential oil and transferred into a holding solution with 5 mg L<sup>−1</sup> essential oil increased frond longevity by 4.9 days and helped maintain both water uptake and visual quality. Under this treatment, fronds exhibited higher chlorophyll a and b contents, lower malondialdehyde content, and delayed loss of radical scavenging ability compared to control. Together, these results indicate that when dosed appropriately in pulsing and holding solutions, essential oil of ginger prolongs the vase life of fronds; it also enhances postharvest quality by simultaneously retarding the degradation of chlorophyll a and b, preserving DPPH scavenging activity, and lowering malondialdehyde accumulation. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Ultrasonic emulsification of Cananga odorata nanoemulsion formulation for enhancement of herbicidal potential(2025-12-01); ; ; A nanoemulsion was fabricated from Cananga odorata essential oil (EO) and stabilized by incorporation of Tween 80 using ultrasonication. The major constituents of the EO were benzyl benzoate, linalool, and phenylmethyl ester. Differing sonication amplitude (20–60%) and time (2–10 min) were assessed for effects on nanoemulsion droplet size and polydispersity index (PI). The smallest droplet size of 43.98 nm (PI 0.222) was obtained using 40% amplitude for 8 min; this nanoemulsion was evaluated for its droplet characteristics and pre-emergence herbicidal activities on Amaranthus tricolor. FT-IR confirmed ultrasonic emulsification to not affect the EO components. Regarding stability, storage at 4 °C was determined appropriate, with droplet size changing slightly after five weeks. Assays of herbicidal potential showed the coarse emulsion and nanoemulsion to both reduce A. tricolor germination and growth, with the nanoemulsion being more effective at a given concentration and the difference in effectivity correlating to droplet size. Remarkably, treatment with 250 ppm nanoemulsion and coarse emulsion respectively resulted in 100% and 63.75% germination inhibition. Both emulsions decreased seed imbibition and alpha-amylase activity. The highest relative electrolyte leakage was achieved in seed treated with the nanoemulsion. Therefore, this ultrasonic-based nanoemulsion may have utility as bioherbicide alternative. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, High-Energy Emulsified Clove Essential Oil Nanoemulsion as a Natural Herbicidal Product: Germination Suppression and Seed Structure Alteration in Echinochloa crus-galli(2026-03-01); ;