Synergistic effects of processing parameters on the biochemical and physical properties of tofu made from yellow field pea ( Pisum sativum ), as determined by response surface methodology

Pelletization is a significant approach for the efficient utilization of biomass energy. Sunflower seed husk is a common solid waste in the process of oil production. The novelty of this study was to determine the parameters during production of a novel pellet made from sunflower seed husk. The energy consumption (W) and physical properties (bulk density (BD) and mechanical durability (DU)) of the novel pellet were evaluated and optimized at the laboratory by using a pelletizer and response surface methodology (RSM) under a controlled moisture content (4%–14%), compression pressure (100–200 MPa), and die temperature (70–170 °C). The results show that the variables of temperature, pressure, and moisture content of raw material are positively correlated with BD and DU. Increasing the temperature and moisture content of raw materials can effectively reduce W, while increasing the pressure has an adverse effect on W. The optimum conditions of temperature (150 °C), pressure (180 MPa), and moisture content (12%) led to a BD of 1117.44 kg/m3, DU of 98.8%, and W of 25.3 kJ/kg in the lab. Overall, although the nitrogen content was slightly high, the novel manufactured pellets had excellent performance based on ISO 17225 (International Organization for Standardization of 17225, Geneva, Switzerland, 2016). Thus, sunflower seed husk could be considered as a potential feedstock for biomass pelletization.

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Effect of processing parameters on the phenolic content of Clinacanthus nutans leaves extract using response surface methodology (RSM)

10.1063/1.5111251 ◽

2019 ◽

Cited By ~ 1

Author(s):

Farah Nadiah Mohd Fazil ◽

Nur Syarafina Mohd Azzimi ◽

Saiful Irwan Zubairi

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Phenolic Content ◽

Processing Parameters ◽

Clinacanthus Nutans

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Optimization of Ultrasonic Extraction of Polyphenol from Pinus Koraiensis Bark Using Response Surface Methodology

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.183-185.1874 ◽

2011 ◽

Vol 183-185 ◽

pp. 1874-1878 ◽

Cited By ~ 1

Author(s):

Ji Chang Wang ◽

Zhen Yu Wang ◽

Zi Luan Fan ◽

Li Li Zuo ◽

Shuang Qi Tian ◽

...

Keyword(s):

Response Surface Methodology ◽

Phenolic Compounds ◽

Response Surface ◽

Ethanol Concentration ◽

Processing Parameters ◽

Ultrasonic Extraction ◽

Raw Material ◽

Extraction Time ◽

Pinus Koraiensis ◽

Ultrasonic Power

Ultrasonic technology was applied for phenolic compounds extraction from the Pinus koraiensis bark （PKB） and response surface methodology (RSM) was used to optimize the effects of processing parameters on phenolic compounds yields. When ultrasonic power 160W,three independent variables were ultrasonic extraction time (X1 20-40min), ratio of water to raw material (X2 1:20-1:40 g/mL)and ethanol concentration(X3 20％-60％), respectively.The optimal extraction conditions of phenolic compounds were determined as follows: Ultrasonic extraction time 30.61 min, ratio of water to raw material 30.79 mL/g and ethanol concentration 42.2%. Under these conditions, the experimental yield of phenolic compounds was 8.2409 ± 0.0648‰, well matched with the predicted models with the coefﬁcients of determination (R2) of 0.9920, which was agreed closely with the predicted value (8.2963‰).

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