Teor de óleo e proteína em grãos de soja em diferentes posições da planta

Sales, Victor Hugo Gomes; Pelúzio, Joênes Mucci; Afférri, Flávio Sérgio; Junior, Waldesse Piragé de Oliveira; Sales, Paulo Victor Gomes

doi:10.18227/1982-8470ragro.v10i1.2462

Cited by 11 publications

(12 citation statements)

References 10 publications

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“…The protein contents found in the cultivation in this research are similar or superior to those described in the literature for plants, such as soybean (40.4% DW in grain) and bran (46.7% DW) (Silva et al, 2006) with variations from 36.82 to 39.85% DW, depending on the region of the plant in which the grain was harvested (Sales et al, 2016). The values found in the present study are higher than those found in quinoa (14.1% DW), maize (9.4% DW) and rice (6.8% DW) (Nowak et al, 2016).…”

Section: Total Carbohydrates Water-soluble Proteins and Total Lipidssupporting

confidence: 82%

Nutritional value changes in response to temperature, microalgae mono and mixed cultures

et al. 2019

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Aim The response of mixed cultures and monocultures of Pseudopediastrum boryanum (Turpin) E. Hegewald and Scenedesmus obliquus (Turpin) Kützing was assessed in the laboratory at three different temperatures: 20, 30 and 40 °C. The change in biomass and biochemical composition of these cultures was evaluated. Methods Microalgae were placed in a batch culture over 21-days in ASM1 medium. Cell density was directly counted every two days using a Fuchs-Rosenthal hemocytometer. Chlorophyll ‘a’ and total carotenoids were extracted twice. Protein, carbohydrate, total lipid and fatty acid contents were determined at the end of the experiment. Results Cultures grown in 40 °C exhibited no growth. However, there was increased cell density (13.6 x 106 cell.mL-1) and biomass (55 g.L-1) in the S. obliquus monoculture at 30 °C. High protein concentrations (672.6 mg.g-1) were observed in monocultures P. boryanum and S. obliquus at 20 °C treatments. There were high carbohydrate concentrations (6.17 mg.g-1) in P. boryanum unialgal at 30 °C. There was no significant difference in total lipid content between S. obliquus (95.5 mg.g-1), P. boryanum (96.3 mg.g-1) and the mixed culture at 20 °C (105.3 mg.g-1). FAMEs varied significantly regarding the number of unsaturated components, which predominantly consisted of fatty acids with two or more unsaturated bonds. Conclusions The biomass of the treatments analyzed was rich in proteins and essential fatty acids (such as linolenic acid), yet low in carbohydrate content, suggesting its potential use as a food supplement. Our results indicate that mixed culture of P. boryanum and S. obliquus was inefficient in cultivating biomass or biochemical compounds as compared to the unialgal cultivations. However, algae grown together showed better stability in their biochemical composition in response to changes in temperature, an important factor for microalgae production in open ponds and in food safety measures. These results suggest the consortia among different species of microalgae should be tested to determine better methodologies for the production of biomass and metabolites with greater stability towards environmental factors.

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Section: Total Carbohydrates Water-soluble Proteins and Total Lipidssupporting

confidence: 82%

Nutritional value changes in response to temperature, microalgae mono and mixed cultures

et al. 2019

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“…For the same coverage to grow M5838 IPRO, it showed greater affinity for total oil in the grain (OG). Because it is a characteristic of soybeans to have high levels of oil in the grain (20%) and other chemical components, its composition is mainly influenced by climatic conditions and genetic conditions of cultivars (SALES et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Cover Crops and Their Relationship With the Qualitative and Quantitative Attributes of Soybeans

Bellinasso

Carvalho

Silva

et al. 2021

BJA

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The work aims to evaluate the effects of soil cover and soybean cultivars on the qualitative and quantitative attributes of soybeans. The experiment was conducted at Giruá, state of Rio Grande do Sul, Brazil. The experimental design was a randomized factorial block design, with two cover crops x seven soybean cultivars, disposed in three repetitions. Agricultural characteristics and nutritional attributes of soya were evaluated. The different coverings influenced the soybean performance for the main variables studied, grain yield was maximized in the coverage of Raphanus sativus + Avena strigosa for the cultivar DM 57I52 IPRO, and the greenish grain levels were lower, consequently increasing the percentage of oil content for that same coverage. The components of variance and genetic parameters show that grain yield was influenced by 56% due to the effects of cultivars and 44% coming from the type of soil cover used.

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“…The same happened for plant height and number of soybean plants. Sales et al (2016) state that the filling mechanisms of the grains with respect to the oil content are still incipient, but there is a negative correlation between the protein and oil content, i.e., the higher the protein content, the lower the oil content of the grain.…”

Section: Agronomic Analysis Of Soybeanmentioning

confidence: 99%

Use of cover crops in Oxisol and its effects on yield and soybean oil content

Tokura

Secco

Júnior

et al. 2021

RSD

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In the no-tillage system, soils generally exhibit some degree of compaction that limits agricultural production. In this scenario, the use of soil cover plants is one of the alternatives capable of improving the structural quality of the soil and increasing the productivity of crops, such as soybeans. In the context, the objective of this study was to evaluate the effect of plant cover species and management systems on the improvement of the physical characteristics of a Oxisol and its effects on the production and content of soybean oil. The treatments consisted of control, no-tillage system with gypsum, chiseling system, and 12 treatments with soil cover species composed of 6 summer species and 6 winter species, in completely randomized design. Soil samples were collected in the 0-0.1; 0.1-0.2 and 0.2-0.3 m layers for determination of bulk density (BD), total porosity (TP), microporosity, macroporosity, and saturated soil hydraulic conductivity (Ksat) in 2014, 2017, 2018. Grain yield, oil content, thousand-seed weight, mean plant height and number of plants per meter were evaluated in soybean crop. Mean treatment values were compared by Tukey’s test at 5% significance. Five months after the chiseling system, there was no influence on BD. The treatments did not present differences six months after the application of gypsum. BD, TP, micro and macroporosity and Ksat were the variables most influenced by the periods of the year in the three soil layers. Grain yield, oil content, thousand-seed weight, plant height and number of plants per meter were influenced by the seasons.

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Teor de óleo e proteína em grãos de soja em diferentes posições da planta

Cited by 11 publications

References 10 publications

Nutritional value changes in response to temperature, microalgae mono and mixed cultures

Nutritional value changes in response to temperature, microalgae mono and mixed cultures

Cover Crops and Their Relationship With the Qualitative and Quantitative Attributes of Soybeans

Use of cover crops in Oxisol and its effects on yield and soybean oil content

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