The results revealed that the pH value of fresh meat patties (day 0) decreased (p˂0.05) with increasing tomato peel powder concentration in the samples (5.77± 0.08 and 5.55± 0.05 for the C and T3 samples respectively) and it increased (p˂0.05) during the storage. The refrigerated storage increased significantly (p˂0.05) the TBA value of all the samples (0.23± 0.05 - 0.44± 0.02 mg MDA/ kg in the C samples). However, adding 3% of tomato peel powder reduced lipid oxidation and showed the lowest TBA value (0.29± 0.02 mg MDA/kg). These results indicate that tomato peel powder can be exploited as a food supplement to reduce lipid oxidation and improve meat quality.
The findings revealed that local knowledge is transmitted primarily through observation and experiential learning. Such knowledge enables community members to identify natural sources of KamKung alga or Sai Don (Chara corallina, Cc), apply practical methods for algal identification, distinguish between edible and inedible species, and utilize the alga for food. The Cc was determined to be a good source of protein (19.55±0.33 g/100g dw) and minerals (10.64 g/100g dw), with several amino acids, particularly methionine, identified in the algal sample. Similar to other algae, Cc had low lipid content (2.54 g/100g dw) with dominant palmitic acid (50.89% of total fatty acids). Polyunsaturated fatty acid was the main component of essential fatty acids including linoleic acid (23.34%) and α-linolenic acid (6.38%). One gram of dried Cc intake was equivalent to 9.98 kJ. High calcium content and high ratio of K/Na at 29.56:1 were recorded. Antioxidant substances including ascorbic acid and selenium were also present. Cobalamin, which is rarely available in higher plants, was also presented in this species. In addition, the aqueous extract of Cc composed of HCl/EtOH and indomethacin exhibited gastroprotective activity in a rat model of water immersion-restraint stress-induced gastric ulcers. Based on the results of this study, Cc is of considerable interest as a potential food source. Therefore, this study is provided the first comprehensive evaluation of edible C. corallina, focusing on its nutritional value, gastroprotective activity, and molecular identification.
Results showed that physiological responses of chili pepper to foliar application of seaweed extract (SE) from Sargassum polycystum and humic acid (HA) during the vegetative growth continued to be positive which is continued to develop under drought stress condition. Higher concentration (6%) of SE is required during the early stage of chili pepper growth and development, but lower SE concentration (2%) was more effective as plants continue to age. On the other hand, the effects of humic acid were much pronounced at the latter stage of chili pepper growth. The higher concentration of humic acid showed better physiological responses (chlorophyll a, chlorophyll b, and total chlorophyll, proline and nutrient uptakes) of chili peppers. Humic acid concentration of 1.50% was generally shown better at lower concentration. The significant interaction between seaweed extract and humic acid concentrations highlighted their complementary roles in regulating photosynthetic pigments and osmoprotective responses. Overall, these findings suggested that targeted biostimulant application enhanced physiological resilience and drought tolerance in chili pepper plants, offering a viable strategy for maintaining productivity in water-stressed environments.
To minimize seed node damage during propagation, a slide-rail pneumatic node cutting machine (SPCM) equipped with double concave blades was developed. The results indicated that pneumatic pressure significantly influenced the cutting force, with the average forces ranging from 1,590 to 2,440 N with the pressure increased. Regarding node quality, the machine’s double concave blade design achieved an average of 72.22% "good quality nodes," with no severely damaged nodes were observed across all the tests. The bottom stalk position yielded the highest percentage of good quality nodes at 81.11%. The maximum working capacity reached 1,290 nodes per hour for the LK92-11 variety at a pressure of 60.04 N/cm². To preserve the lightweight structure of 42 kg, a pressure of 50.03 N/cm² is recommended for standard operation.
Podagrica decolorata (Coleoptera : Chrysomelidae) is a serious pest of okra Abelmonchus esculentus. It is responsible for a significant yield losses of okra. The efficacy of four ethanol plant extracts and pesticides on Podagrica decolorata adults were collected on okra cultivation in Man, Côte d’Ivoire. Repellency and toxicity effects of ethanolic extracts were compared to the pesticides by contact and ingestion. Pesticides and 50 g/l of each ethanolic plant extracts were tested on ten Podagrica decolorata adults, respectively. The ethanolic extracts of the plants (Hyptis suaveolens, Carica papaya, Calotropis procera and Tithonia diversifolia) and pesticides (BioElit® and K-OPTIMAL35EC®) exerted repellent effects and induced mortality on Podagrica decolorata adults by ingestion and by contact. The pesticides BioElit® and K-OPTIMAL35EC® were on repellency class III with a value of 48.33% and 55.00%, respectively. They are followed by Carica papaya and Hyptis suaveolens, which were on repellent class II, with a value of 35.00% and 38.33%, respectively. The ethanolic extracts of Calotropis procera and Tithonia diversifolia were on repellency class I with a value of 18.33% and 6.66%. Hyptis suaveolens leaves extract can be used as a pesticide against Podagrica decolorata. This botanic extracts are eco-friendly, the plant is locally available and it efficacy is similar to the pesticides used in the bioassay.
