Techavuthiporn, Chairat

Loading...
Thumbnail Image
Preferred name
Techavuthiporn, Chairat
Alternative Name
Techavuthiporn, C.
Main Affiliation
Email
chairat.te@kmitl.ac.th

Settings

Now showing 1 - 4 of 4
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Implementing short-term anoxic conditions as a straightforward and effective postharvest technique to preserve the quality of ‘Sucrier’ bananas
    (2026-06-01)
    Techavuthiporn, C.
    ;
    Sittiprasert, W.
    ;
    Phakawan, J.
    ;
    Supapvanich, S.
    The aim of this study was to examine the impact of an oxygen limitation, so-called anoxic conditions, on the ripening process and the physicochemical characteristics of ‘Sucrier’ bananas during storage. A preliminary experiment was conducted to determine the optimal duration of anoxia treatment, ranging from 0 to 20 h. The experiment determined that subjecting the fruit to anoxic conditions for 16 h resulted in the most successful treatment for delaying the development of fruit skin color at room temperature for a period of 8 days. Furthermore, the reduction in moisture content of the peel and the increase in weight loss, pulp-to-peel ratio, and moisture content of the pulp exhibited a notable disparity compared to the other treatments. Therefore, the duration of 16 h of anoxic conditions was chosen to further examine the responses of fruit after storage for 18 d at 15°C, in comparison to the control fruit, which had no exposure to anoxic conditions. Bananas treated with anoxia exhibited a decrease in the developed peel color, as indicated by decreased Δa* and ΔH values. The treatment also demonstrated greater fruit firmness in comparison to the untreated fruit. In addition, the peel of treated bananas exhibited a greater relative value of firmness, whereas the relative values of electrolyte leakage, malondialdehyde, and H2O2 were lower. This is likely caused by the application of anoxia treatment, which might stimulate the activity of DPPH scavenging.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Effect of passive modified atmosphere storage incorporated with 1-MCP on quality of asparagus spears during cold storage
    (2020-04-22)
    Techavuthiporn, C.
    ;
    Supapvanich, S.
    The purpose of this work was to determine the effects of 1-methycyclopropane (1-MCP) incorporated with passive modified atmosphere packaging on quality of asparagus during stored at 4°C. Weight loss, texture, fiber, total ascorbic acid and total sugar content of the asparagus packed in polyethylene bag (PE), treated with 1 ppb 1-MCP (MC) and treated with 1 ppb 1-MCP incorporated with contained in PE bag (MP) were monitored. The result shows that the use of PE bag prevented the loss of fresh weight of asparagus. The use of 1-MCP and 1-MCP incorporated with PE delayed the loss of firmness. The fiber content of the asparagus increased during storage. There was no significant difference in fiber content of each treatment during storage. The use of 1-MCP incorporated with PE delayed the loss of ascorbic acid content rather than other treatments. The use of PE, 1-MCP and 1-MCP incorporated with PE delayed the reduction of total sugar content when compared to the control. These results suggest that the use of 1-MCP incorporated with PE is a good alternative delaying the loss of fresh weight and total ascorbic acid content of asparagus spears.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Efficacy of preharvest salicylic acid treatment on postharvest quality enhancement of Marian plums (Bouea oppositifolia (Roxb.) Meisn.)
    (2026-06-01)
    Supapvanich, S.
    ;
    Da, L.
    ;
    Phakawan, J.
    ;
    Techavuthiporn, C.
    Marian plum (Bouea oppositifolia (Roxb.) Meisn.) is a tropical fruit tree that holds significant commercial importance in Southeast Asia. Softening and disease incidence are the main problems limiting the postharvest quality of the fruits. The purpose of this study was to determine the efficacy of preharvest salicylic acid (SA) spray on fruit quality maintenance during storage at room temperature (25±1°C). The fruits were preharvest sprayed with SA at concentrations of 0 (water), 1, 2, and 3 mM prior to harvest for 3 days. The finding showed that 3 mM SA evidently delayed the progression of fruit coloration from the time of harvest to the end of storage (day 8) in comparison to the control treatment. During storage, disease incidence in the 3 mM SA-treated fruits was not found in comparison to other treatments. All SA treatments reduced the magnitude of the weight loss increase. The 3 mM SA treatment delayed fruit softening, lipid membrane degradation, and an increase in total soluble solids, while maintaining a high level of total acidity. In addition, the application of 3 mM SA significantly increased the ferric reducing antioxidant potential, and all SA treatments effectively maintained free radical scavenging activity compared to the control treatment. In conclusion, preharvest SA spray at 3 mM prior to harvest is an effective approach to maintaining the postharvest quality of marian plums during storage.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Effect of short-term anoxia on chlorophyll and sensory attributes of 'See-Thong' carambola fruit
    (2022-04-01)
    Yingsanga, P.
    ;
    Techavuthiporn, C.
    Change of surrounding atmosphere is a practical technique for extending shelflife of fresh produces after harvesting. The aim of this study was to investigate the effect of short-term anoxia treatment on chlorophyll degradation and organoleptic properties of 'See-Thong' carambola fruit. Different maturities of carambola fruits, namely 'green-mature', 'color-break' and 'ripening' stages, were used in this study. The periods of anoxia treatment were set at 0 (control) and 24 h using humidified nitrogen gaseous with a flow rate at 100 mL min<sup>-1</sup>. Sensory quality attributes (using preference test; 5-points hedonic scales and disorder evaluations) were periodically analyzed for 2 days interval during storage at 25±2°C until commercially unmarketable. The results showed that no significant differences were observed among maturity stages exposed to 24 h anoxia in overall appearance, freshness, and defect score whereas it showed a trend to higher score of sweetness. However, stages of carambola showed significant difference. It was found that the 'green mature' stage had the highest scores of overall appearance and freshness, following by 'color-break' and 'ripening' stage, respectively (P≤0.01) but the defect score in 'color-break' stage was the highest. The sweetness in 'green-mature' stage was lower than 'color-break' and 'ripening' stage, respectively (P≤0.01) after 0 and 6 days of storage. However, the scores of off-odor and off-flavor were undetectable in all treated samples throughout the storage period. Exposure to anoxia did not affect chlorophyll a degradation in all stages. 'Mature green' stage had higher content of chlorophyll a than that of 'color-break' and 'ripening' stage (P≤0.01).