Journal of Water and Land Development

Urbina-Suarez, Nestor Andres; Barajas-Solano, Andres Fernando; Garcia-Martinez, Janet Bibiana; Lopez-Barrera, German Luciano; Gonzalez-Delgado, Angel Dario

doi:10.24425/jwld.2021.138169

Cited by 4 publications

References 33 publications

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The Effect of Chlorella vulgaris (Chlorellales: Chlorellaceae) on the Fertility of Sandy Soils and on the Composition of Soil Leachates

Garbowski

2024

J Soil Sci Plant Nutr

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The aim of the manuscript was to verify the hypothesis whether the algal biomass of Chlorella vulgaris added as a fertilizer affects the properties of a sandy soil and the leachates from that soil. A pot experiment was conducted using sandy soil, which was enriched with a suspension of live Chlorella vulgaris cells. The concentrations of total nitrogen (Ntotal), ammonium nitrogen, nitrate nitrogen, total phosphorus (Ptotal), phosphate phosphorus, potassium, sulphates, turbidity, pH and electrolytic conductivity (EC) were determined in the leachates from soil. Soil samples from each pot were analysed for Ntotal, Ptotal, Pavailable, Kavailable, calcium (Ca), organic carbon (Corg.) and pH. Soil fertilized with suspended biomass of Chlorella vulgaris was enriched with nutrients, mainly nitrogen, phosphorus and calcium. The use of algae has also helped reduce nutrient losses in the soil. There was an increase in the concentration of SO42− ions in the tested leachates, which could pose a potential threat to the environment. Conducted studies confirm the hypothesis that Chlorella vulgaris added to sandy soil as a suspension of living cells affects the fertilizing properties of the soil and the composition of leachates from the fertilized soil. Soil fertilized with Chlorella vulgaris biomass is more resistant to nutrient leaching. An important conclusion of the study is that the composition of soil leachates needs to be monitored when testing and applying this type of fertilizer, due to the risk of sulphates entering into the groundwater.

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The Effect of Chlorella vulgaris (Chlorellales: Chlorellaceae) on the Fertility of Sandy Soils and on the Composition of Soil Leachates

Garbowski

2024

J Soil Sci Plant Nutr

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The role of fat-producing yeasts in reducing food industry waste

HUY,

MAHMUDIONO,

TRUNG

et al. 2022

Food Sci. Technol

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Yeasts are widely used as cellular factors in the production of bread and, more recently, various metabolic products such as vitamins, ethanol, citric acid, and lipids. Lipids synthesized by microorganisms are used in the pharmaceutical industry for technical purposes or as feed. The ability of the superior microorganism to grow on the xylose and the amount of fat production in this area were measured under optimal conditions. Xylose is one of the most abundant 5-carbon sugars in nature, and microorganisms that can grow on it are important. In this paper, the effect of different values of ammonium sulfate concentration, glucose concentration, temperature, aeration, incubation time, and pH are investigated. The results showed that with increasing ammonium sulfate concentration, glucose concentration, Incubation time, and pH, values of production of lipids, dry biomass, and percentage of lipid production by dry weight increased. Also, increasing the values of temperature and aeration has reduced the mentioned values. Finally, it can be said that the values for the studied parameters are: Concentration 1 g/L for ammonium sulfate, concentration 100 g/L for glucose, temperature 2 °C, aeration 150 rpm, incubation time 72 h, and pH equal to 6.5.

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Determination of the antioxidant and mineral contents of raspberry varieties

et al. 2022

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Humans maintain their health by consuming a variety of vegetables and fruits that contain antioxidants, both enzymatic and no enzymatic. Raspberry is one of the most diverse genus of true dicotyledonous plants, which includes 12 subspecies and about 429 species. Raspberry fruit is rich in antioxidant compounds, especially polyphenols. Two species of raspberry were studied to determine the amount of antioxidants and phenolic and flavonoid compounds in their fruits at three different stages of fruit ripening immature, semi-ripe and mature. Natural samples of Rubus idaeus and Rubus strigosus were collected. In this study, the fruit extracts of two species were stored at -23 °C for about six months. Free radical cleansing and Ferric reducing antioxidant power methods were used to determine the antioxidant activities of the extracts. The antioxidant activity of both methods revealed a higher mean value in extracts from fully matured fruits compared with immature and semi-ripe fruits. The results showed that the antioxidant activity of Rubus strigosus is 9%, 10%, and 8% higher than Rubus idaeus in the stages of immature, semi-ripe, and full maturity, respectively.

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Journal of Water and Land Development

Cited by 4 publications

References 33 publications

The Effect of Chlorella vulgaris (Chlorellales: Chlorellaceae) on the Fertility of Sandy Soils and on the Composition of Soil Leachates

The Effect of Chlorella vulgaris (Chlorellales: Chlorellaceae) on the Fertility of Sandy Soils and on the Composition of Soil Leachates

The role of fat-producing yeasts in reducing food industry waste

Determination of the antioxidant and mineral contents of raspberry varieties

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