Journal of Human, Environment, and Health Promotion

173-181

Authors: Amir Hossein Baghaie *

Background: This research was conducted to evaluate the effect of Piriformospora indica (P.indica), drought, and soil salinity stress on diesel oil biodegradation in a soil that was polluted with Pb and Cd. Methods: Treatments consisted of corn inoculated with P.indica and white clover intercropping system under the salinity (3.1 and 6 dS/m) and drought (normal and intensive) stress which cultivated in the Pb and Cd polluted (naturally) soil which simultaneously contaminated with diesel oil at the rates of 0 and 4 % (W/W). After 10 weeks, plants were harvested and the diesel oil biodegradation in the soil was determined. In addition, the soil microbial activity, the APX and POX enzyme activates were measured. Results: Diesel oil biodegradation significantly increased in the soil under cultivation of plants inoculated with P.indica, while it significantly decreased under salinity and drought stress by 12.9 and 9.8%. However, the intercropping system had positive effects on increasing the soil microbial activity and biodegradation of diesel oil in the soil. Conclusion: Corn inoculation with P.indica significantly affected the biodegradation of diesel oil in the heavy metals and petroleum hydrocarbon polluted soil that is under salinity and drought stress.

189-196

Authors: Saharnaz Noorbakhesh, Elham Danaee *

Background: Nowadays biomaterial has been proposed as a suitable alternative for chemical substance. It has no odor and taste and its consumption is beneficial to human health. The present study aimed to investigate the effect of application of chitosan coating individuality and along with Aloe Vera gel on the nutritional level and quality of strawberry fruit (cv. Camarosa). Methods: After application treatments Aloe Vera gel (0, 50 and 100%), Chitosan (0, 0.5 and 1%) and their combination, plates contain strawberry were kept in the refrigerator with a temperature of 4 ± 1 °C, at humidity of 85- 90%. Traits were evaluated in the first days zero, 4, 8 and 12. Results: The results showed fresh weight of fruit, chlorophyll, vitamin C and anthocyanin significantly affect by Aloe Vera 100%+ Chitosan 0.5% application. Also, plants treated with Aloe Vera 50% + chitosan 0.5% produced higher taste index, phenol and antioxidant capacity. On the other hand, lower weight loss of fruit, malondialdehyde and total soluble solids was observed with Aloe Vera 100 % + Chitosan 0.5 %. Storage life significantly was enhanced with Aloe Vera 50% + Chitosan 0.5% up to 15.7 days which was the same level with Aloe Vera 100% + Chitosan 0.5%. Conclusion: Overall, the application of Aloe Vera treatment 50% or 100% along with Chitosan 0.5%, would be a highly recommended practice in the maintaining the nutrition value and storage life of strawberry fruits.

205-212

Authors: Fatemeh Zahra Takin, Younes Khosravi * , Abbasali Zamani

Background: This study was conducted to investigate the relationship between land use changes and physicochemical characteristics of groundwater in the Dalaki watershed in Bushehr province, from 2006 to 2016. Methods: In this study, changes in the amounts of chlorine, calcium, sodium, sulfate, and total dissolved solids were investigated. In the first step, the spatial relationships of the aforementioned parameters were evaluated and the optimal models were selected for mapping. Then, using Landsat satellite images, the land use classification was done. Finally, the relationships between land use changes and the physicochemical characteristics of groundwater were surveyed. Results: According to the analysis of the results, the highest concentration of groundwater in the studied years was observed in rainfed agriculture, palm groves and orchards land uses. Conclusion: A significant relationship can be established between agricultural uses and the increase in the concentration of groundwater physicochemical characteristics. In other words, agricultural use caused groundwater resources salinity and reduced their quality. Because of the vastness of land use, a large amount of groundwater is taken to irrigate crops. Moreover, rainfed agriculture increased and decreased the number of quality characteristics, however using planting palm trees only increased them.

221-224

Authors: Romina Saei, Saeid Khanzadi *, Mohammad Hashemi, Mohammad Azizzadeh

Background: Electrolyzed oxidizing water (EOW) is a novel natural disinfectant. It has been suggested that applying EOW can improve the shelf life of fish. The purpose of this research was to compare the effect of electrolyzed water with a solution of alginate coating prepared/followed by EOW and examine their impact on pseudomonas aeruginosa growth inhibition in salmon fillets kept under refrigeration. Methods: Fish fillets were inoculated with pseudomonas aeruginosa and divided into six different treatment groups: control (no coating), distilled water, alginate, EOW, EOW & alginate (samples coated with alginate solution prepared by EOW), and EOW+ alginate (samples immersed in EOW, then coated with alginate solution). The fillets were kept at 4 °C, and the bacterial count was determined on days: 0, 2, 4, 8, and 12. Data analysis was performed using repeated ANOVA and Bonferroni post-hoc test at statistical significance of 0.05. Results: Additionally, both the solo and combined application of electrolyzed water and alginate coating have been shown to substantially limit developing Pseudomonas aeruginosa. However, their combined usage had a greater impact than control sample. When coating solution was applied followed by electrolyzed water, the greatest decrease rate (1.27 logs CFU/g) was found in comparison to control samples. Conclusion: According to the findings, applying alginate coating in conjunction with electrolyzed water may be used realistically in food systems, particularly seafood.