scholarly journals Design of Comprehensive Experiment of Synthesis and Adsorptive Property of Magnetic Peanut Shell Biochar

Daxue Huaxue ◽  
2021 ◽  
Vol 0 (0) ◽  
pp. 2107060-0
Author(s):  
Yuwang Chen ◽  
Shuxian Wang ◽  
Jiao Zhang ◽  
Xiaofang Yang ◽  
Chunyue Cui ◽  
...  
Keyword(s):  
Peanut Shell ◽  
Adsorptive Property

scholarly journals Facile preparation of porous biomass charcoal from peanut shell as adsorbent

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Suzhen Bai ◽  
Tiantian Wang ◽  
Zhengshan Tian ◽  
Kesheng Cao ◽  
Jitao Li
Keyword(s):  
Activated Carbons ◽  
Low Cost ◽  
Chemical Activation ◽  
Peanut Shell ◽  
Biomass Waste ◽  
Adsorptive Property ◽  
Environmental Friendliness ◽  
Synthetic Process ◽  
Removal Capacity ◽  
Hierarchical Porous

Abstract Activated carbons derived from biomass have been proved to be one of the most promising adsorbents due to their abundance, low cost, reproducibility and environmental friendliness. In this study, a simple, facile and effective pyrolysis method was demonstrated to prepare hierarchical porous biomass charcoal by using peanut shells as precursor without chemical activation in an electric muffle furnace. The obtained products hold porous structure and abundant oxygen-containing functional groups, which were mainly due to in-built template of the structure of peanut shell and the preparation process without nitrogen protection, respectively. Interestingly, the obtained biomass charcoal sample with excellent adsorptive property quickly removed Pb2+ (100 mg/L) and methylene blue (50 mg/L) from water with removal efficiency of 96.5% and 97.1%, and removal capacity of 48 mg/g and 24 mg/g, respectively. The synthetic process was simple and economical, and it could be used as a beneficial reference in the recycling of biomass waste.

ASSESSMENT OF TORREFACTION EFFECTS ON PEANUT SHELL COMMERCIAL PELLETS

2019 ◽  
Author(s):  
Nayssa Ribeiro ◽  
Dário Machado Júnior ◽  
Robson Leal da Silva ◽  
Julio Cesar Dainezi de Oliveira
Keyword(s):  
Peanut Shell

TOKSISITAS AKUT INFUSA KULIT ARI KACANG TANAH (Arachis hypogea L.) PADA MENCIT BALB/ C

2018 ◽  
Vol 15 (2) ◽  
pp. 62
Author(s):  
Risha Fillah Fithria ◽  
Ririn Lispita Wulandari ◽  
Devi Nisa Hidayati ◽  
Lilis Rejeki
Keyword(s):  
Single Dose ◽  
Color Change ◽  
Negative Control ◽  
Control Group ◽  
Hair Color ◽  
Peanut Shell ◽  
Control Group Design ◽  
Safety Standards ◽  
Arachis Hypogea ◽  
Passive Behavior

ABSTRACTPeanut shell (PS) infusion has been shown to be antithrombocytopenia, but there has been no research on safety standards. This study aims to identify the symptoms of toxic effects, the potency of toxicity and histopathology of liver male Balb/C mice after a single dose of PS infusion. This research uses randomized matched posttest only control group design. Twenty five mice were divided into 5 orally dosage groups, ie, PS infusion with a dose of 0,026; 0.052; 0.104; 0.208 g/20gBW; and negative control of CMC Na 0.5%. The observation period is for 14 days. The results showed that single dose of PS infusion had a pseudo LD50 value ie > 0.208g/20gBW which was practically non toxic. Symptoms to watch out for the BW infusion were passive behavior, bradycnea, hair color change, hair loss, and weight loss at doses of 3 and 4. It is unclear whether liver damage ie inflammation, necrosis, and albuminous degeneration caused by PS infusion or other causes.keywords: acute toxicity, infusion, peanut shell

scholarly journals Skin-Whitening and Anti-Wrinkle Effects of Bioactive Compounds Isolated from Peanut Shell Using Ultrasound-Assisted Extraction

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1231
Author(s):  
Da Hye Gam ◽  
Ji Woo Hong ◽  
Jun Hee Kim ◽  
Jin Woo Kim
Keyword(s):  
Ethanol Concentration ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Peanut Shell ◽  
Ultrasound Assisted Extraction ◽  
Skin Whitening ◽  
Activity Inhibition ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
Experimental Values

Response surface methodology was employed to optimize the ultrasound-assisted extraction (UAE) conditions for simultaneous optimization of dependent variables, including DPPH radical scavenging activity (RSA), tyrosinase activity inhibition (TAI), and collagenase activity inhibition (CAI) of peanut shell extracts. The effects of the main variables including extraction time (5.0~55.0 min, X1), extraction temperature (26.0~94.0 °C, X2), and ethanol concentration (0.0%~99.5%, X3) were optimized. Based on experimental values from each condition, quadratic regression models were derived for the prediction of optimum conditions. The coefficient of determination (R2) of the independent variable was in the range of 0.89~0.96, which demonstrates that the regression model is suitable for the prediction. In predicting optimal UAE conditions based on the superimposing method, extraction time of 31.2 min, extraction temperature of 36.6 °C, and ethanol concentration of 93.2% were identified. Under these conditions, RSA of 74.9%, TAI of 50.6%, and CAI of 86.8% were predicted, showing good agreement with the experimental values. A reverse transcription polymerase chain reaction showed that peanut shell extract decreased mRNA levels of tyrosinase-related protein-1 and matrix metalloproteinase-3 genes in B16-F0 cell. Therefore, we identified the skin-whitening and anti-wrinkle effects of peanut shell extracts at protein as well as gene expression levels, and the results show that peanut shell is an effective cosmetic material for skin-whitening and anti-wrinkle effects. Based on this study, peanut shell, which was considered a byproduct, can be used for the development of healthy foods, medicines, and cosmetics.

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