Forthcoming

  • The effects of weather factors on titrating acids accumulation in sweet cherry fruits (2022-12-29)
    Tetiana Tymoshchuk,

    During the fruit formation, the weather conditions have a decisive influence on the organic acids accumulation. In the context of global climate change, this issue has become new. The study of the titrated acids content in sweet cherry fruits was carried out for 12 years. Cherry fruits of three ripening groups were selected for the study. The average and strong correlation dependence between 11 weather factors and the titrated acids content for the sweet cherries varieties of early, middle, late ripening periods were determined. The ranges of the weather factors share that have the maximum influence on the formation of the titrated acids fund in sweet cherry fruits ( 10.37-34.06%) were established. The research showed that the rate of a maximal titrating acids content  have been found in Valeriy Chkalov, Dilema and Udivitelna varieties. The optimal values of sugar-acid indices in the fruits of 31 sort-samples of sweet cherry of all terms of ripening have been established. Weather conditions, which were during the years of the research, had dominating effects on the formation of titrating acids fund for all groups of varieties irrespective of the term of fruit ripening. Ranking of weather factors according to the degree of their influence on the titrated acids accumulation in sweet cherry fruits of three ripening periods has revealed that for varieties of early, middle and late ripening periods of sweet cherry varieties the maximum influence and 1 rank factor has the average monthly precipitation in May; for medium ripening period varieties is the average minimum relative humidity in May.



  • Income and price elasticities of animal food demand and welfare in Indonesian urban: an application of the LA-AIDS (2022-12-30)
    Ana Arifatus Sa'diyah,

    Protein consumption can be a measure of the welfare of society. Developed countries consume more protein than developing countries. This study analyzes the effect of rising prices and income on demand and welfare in urban Indonesia. The research data use the 2018 Household National Socio-Economic Survey (Susenas) data in household consumption and expenditure data collected by the Central Statistics Agency (BPS). The number of samples is 133,873 households. The demand systems approach uses the Almost Ideal Demand System (LA-AIDS). The welfare change approach uses Compensating Variation (CV) and Equivalent Variation (EV). The results showed that the meat group was the most elastic animal food with a demand elasticity of 13,936%, followed by milk (0.991%), sea fish (0.649%), eggs (0.284%), and chicken meat (0.057%). Beef is a substitute for sea fish and eggs. Beef with chicken and milk is complementary. All animal food is a luxury item except sea fish, which is a normal item. In the long term, the highest marginal expenditure share is marine fish at 0.592%, followed by milk (0.123%), beef (0.102%), eggs (0.078%), and the lowest is chicken meat at 0.012%. Taking into account the substitution, the price increase simultaneously requires CV compensation of Rp. 244,830/HH/month, EV of Rp.231,858/HH/month. Especially for the animal food group, the biggest compensation for eggs needs CV compensation of Rp. 10,083/HH/month, and EV of Rp. 9,493/HH/month. In general, EV compensation is more effective than CV compensation.



  • The Physiological response of some canola genotypes to proline concentration under salt water irrigation conditions (2022-12-29)
    Faten Ibrahim, TIL FEIKE, I. M. EL-MATWALLY, A. A. KANDIL, A.S.M. YOUNIS, S. F. EL HABBASHA,

    Abstract


    A pot experiment was conducted in split-split plot design with four replications to study proline foliar application with 0, 50 and 100 ppm and four canola genotypes which cultivated under irrigation of tap water and salinity irrigation water at 4500 ppm and their interactive effects on growth characters, yield and yield components and some chemical composition of the canola plants. Results indicated that higher salinity level at 4500 ppm reduced growth, photosynthetic pigments, yield and yield attributes as well as chemical composition of seeds as compared with tap water. Results also indicated that Serw 6 cultivar had greatest values of most characters under study. Trapper cultivar came in the second rank.  Meanwhile, Proline treatment at 100 ppm was the most optimum treatments. Results indicated that there were the interaction between salinity x cultivars x proline concentration. Pots irrigated tap water secured the highest values of most characters with Serw 6 or Trapper cultivar x 100 ppm proline treatment. It could be concluded that proline especially at 100 ppm partially alleviated the harmful effects of salinity stress on the growth, yield and yield components as well as chemical composition of seeds of Serw 6 or Trapper cultivar of canola plants and nutritive value of the yielded seeds.



  • Taste Masking in Vegan Food Processing with Natural Substitutes (2022-12-29)
    Emel Yusuf,

    Climate change, sustainability issues, increased risks of meat diet on both ecology and human health cause changes in the eating habits of individuals. Plant-based foods supply protein sources with health-promoting compounds. The bitterness of plant-based foods is a challenge for both food manufacturers and consumers. So far, artificial taste blockers, salt, sugar, and fat have been applied to mask the bitterness of plant-based products. However, people are conscious of "clean labelling " and "natural " ingredients in foods. Thus, natural taste blockers are the new trend for vegan food manufacturing to mask bitterness. The review focuses on providing information about natural salt, sugar and fat replacers for foods as taste blockers of bitterness. The study highlights the recent natural taste blockers, application trends, and regulations for food processing.



  • The potential of cabbage waste extract as a biostimulant for enhancing growth, biochemical constituents and oil quality of thyme (Thymus vulgaris) (2022-12-28)
    Reham Sabry, Adel Bayomi Salama, Hend El-sayed Wahba, Magdi T. Abdelhamid , Heba I. Mohamed,

    Thyme (Thymus vulgaris L.) is an important cultural aromatic plant, whose herb and essential oils (EOs) have been used in many industrial and medicinal applications. Herb and EO yields are often negatively influenced by various factors, so it is important to keep finding new growing procedures that increase the quantitative content of herb and EOs. Therefore, this paper is focused on the effects of applying cabbage extract (CE) at different concentrations on morphological parameters, mineral contents, total carbohydrates and the quantitative and qualitative content of EOs in T. vulgaris plants. Two trials were conducted during two successive seasons of 2017/2018 and 2018/2019 to assess the growth and essential oil response of thyme plants to different concentrations of natural plant extract. Cabbage extract (1, 2, 4, 6, 8 %) was sprayed on thyme plants four times along each season.  Besides, spraying cabbage extract had a noticeable positive effect on vegetative growth parameters and oil percent of thyme plants. All concentrations caused increases in N%, P%, K%, carbohydrates % and caused variable effects between all oil compositions as compared to control plants. Moreover, foliar spray with 2 and 4% of CE caused increment in the values of morphological parameters, carbohydrate, minerals and all oil components as compared with control plants. The major compounds of thyme oil (thymol, p -Cymene and γ- terpinene) showed the highest percentage in oil of herb harvested at the first and second harvest (H1 and H2) after foliar spray with 2 and 4% CE. In conclusion, leaves waste of cabbage plants can be used as a biostimulant.



  • Sustainable Eating Futures: A case Study in Saudi Arabia (2022-10-25)
    Muhammad Waqar Ashraf, Faisal Alanezi,

    Food systems are central to human societies. Developing sustainable, nutritious and healthy food systems will be crucial to accomplish sustainable development goals. The multifarious politics underlying food production, distribution as well as consumption are often ignored. The present paper analyses different factors affecting food consumption in the local population of Saudi Arabia and relates it to supply chain. Different futuristic scenarios are discussed to develop sustainable food consumption practices in Saudi Arabia. This paper also addresses opportunities at the intersection of food and smart technologies. Moreover, the scenarios discuss the roles played by society and technological advancements in food conservation and consumption in the Saudi society.