Evaluation of bioactive compounds and bioactivities of soybean dried by different methods and conditions

Niamnuy, Chalida; Nachaisin, Mali; Laohavanich, Juckamas; Devahastin, Sakamon

doi:10.1016/j.foodchem.2011.05.042

Cited by 57 publications

(39 citation statements)

References 34 publications

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“…Almeida et al (2013) also observed a decrease in the percentage of germination with an increase in the temperature of the drying air for bean grains. Regardless of the drying position of the grains in the dryer and the temperature of the drying air used, the percentage of germination of the grains was reduced when they reached the lowest water contents after drying, corroborating the results observed by Sanjinez-Argandoña, Branco, Bittencourt, andMunhoz (2011), Niamnuy, Nachaisin, Laohavanich, andDevahastin (2011) and Coradi, Melo, and Rocha (2014). Hegarty (1978) verified that the highest germination value occurred when the grains were dried at a temperature of 45°C both in the shade and prototypes of stationary dryers regulated at temperatures of 35/45°C and 35/45°C.…”

Section: Methodssupporting

confidence: 85%

<b>Validation of an experimental prototype of thick-layer fixed bed dryer and determination of the quality of the dried soybean grains

Coradi

Lemes

2018

Acta Sci. Agron.

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ABSTRACT. The aim of this study was to validate an experimental prototype dryer with a thick-layer fixed bed and determine the quality of the dried soybean grains. The drying system was designed as a chamber with four independent drying cells, with a capacity of 164 kilograms, an air ventilation system and heating with electric heaters. This prototype was used for soybeans with an initial water content of 17% (w.b.). The samples were collected from the top, middle and bottom of the four cells to evaluate the quality of the grains. The experimental design was completely randomized factorial (3 x 4 x 3), with three temperatures settings for the drying air (30, 40, and 50°C), four drying cells and three evaluation positions (upper, middle and lower). The grains did not undergo quality changes as a function of the drying cells. In the upper part of the drying cells, there was a reduction in the specific grain mass (851 kg m -³), an increase in electrical conductivity (140.02 μS cm, reduction in germination (63%) and oil content (7%) compared with the middle and lower dryer positions. The experimental prototype of the fixed bed dryer allowed a uniform distribution of the heated air in the drying cells, which was effective in the drying operation and in maintaining the quality of the soybean grains.Keywords: control and optimization of the drying; loss reduction of grain quality in the drying; yield of the drying processes.

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Section: Methodssupporting

confidence: 85%

<b>Validation of an experimental prototype of thick-layer fixed bed dryer and determination of the quality of the dried soybean grains

Coradi

Lemes

2018

Acta Sci. Agron.

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“…The inhibition of a-amylase activity, together with a-glucosidase, is considered to be an effective strategy for the control of diabetes. From this point of view, more researchers have focused on the search for more effective inhibitors of anti-diabetic compounds from natural materials (Liu, Tzeng, et al, 2011;Wang, Du, et al, 2010), such as polysaccharides from tea leaves (Xiao, Huo, et al, 2011), hydrolysate from sardine muscle (Matsui, Yoshimoto, et al, 1996) and isoflavones from soybean (Niamnuy, Nachaisin, et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Anti-diabetic activity peptides from albumin against α-glucosidase and α-amylase

et al. 2012

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“…The objective of the electrical conductivity test is to evaluate the quantity of electrolytes released from seeds during imbibitions, which is directly related to the integrity of cell membranes. [1,2] Several studies have shown that seeds with low water content, when placed in a humid substrate or water by immersion, present an initially rapid and high loss of leachate, reducing the quality of material, and it is rehydrated until it reaches an equilibrium point. [3,4] One factor that influences the final evaluation of electrical conductivity is the temperature used to imbibe the seeds, because it directly affects the rate of water absorbed by the seed and the release of electrolytes from cells' interior to the external environment.…”

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confidence: 99%

Evaluation of Electrical Conductivity as a Quality Parameter of Lemongrass Leaves (Cymbopogon citratusStapf) Submitted to Drying Process

Coradi¹,

Melo²,

Rocha³

2014

Drying Technology

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This study aims to evaluate the quality of lemongrass plants after drying at different speeds (1.0, 1.5, 2.0 m s À1 ), temperatures (40, 50, 60, and 70 C), and drying air control systems (manual and automatic) using electrical conductivity as a parameter for evaluation. Firstly, we evaluated the time necessary for imbibitions of material in deionized water after drying for different air speeds and control systems. Secondly, the effect of temperature in fresh and dry plants was evaluated, comparing them with contents of essential oils and the quantity of ions leached by the electrical conductivity test. According to the results, the value of liquid diffusion increased with the increase of drying air temperature, and the value of activation energy was 62.84 kJ mol À1 . The quality of lemongrass plants evaluated by the electrical conductivity test was inversely proportional to the increase in drying air temperature, and the levels of essential oils were higher in dry plants with lower drying air temperatures. The adaptation of the electrical conductivity methodology to lemongrass plants was effective. A period of 33 h of imbibitions of the material in deionized water was necessary to obtain consistent results from leaching of potassium ions. The electrical conductivity can be used as a quality parameter for drying of medicinal plants.

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Evaluation of bioactive compounds and bioactivities of soybean dried by different methods and conditions

Cited by 57 publications

References 34 publications

<b>Validation of an experimental prototype of thick-layer fixed bed dryer and determination of the quality of the dried soybean grains

<b>Validation of an experimental prototype of thick-layer fixed bed dryer and determination of the quality of the dried soybean grains

Anti-diabetic activity peptides from albumin against α-glucosidase and α-amylase

Evaluation of Electrical Conductivity as a Quality Parameter of Lemongrass Leaves (Cymbopogon citratusStapf) Submitted to Drying Process

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