KEY ENGINEERING MATERIALS
·
2020
·
IF 0
Yi Peng Wang,Song Yang,Yun Zhen Jia,Pei Jian Sun,Xue Hui Sun,Hong Bo Wang,Jun Wei Guo,Xiao Bing Zhang,Hui Min Liu,Cong Nie
In this study, carboxymethyl peanut shell (CPS) was prepared, and then peanut shell-based porous material (PPS) was obtained by the complexation reaction of CPS with Cu2+. The carboxymethyl content of CPS increased gradually with the increase of the amounts of monochloroacetic acid and sodium hydroxide, and the Cu2+ loading amount of PPS increased gradually with the increase of carboxymethyl content. The scanning electron microscope results showed that PPS-1, PPS-2, PPS-3 (PPS-1~3) had many nanoscale pores. The nitrogen adsorption-desorption results suggested that PPS-1~3 were all mesoporous materials with an average pore diameter of about 10 nm, while their Brunauer-Emmet-Teller surface area and pore volume of PPS-1 to PPS-3 increased gradually. Compared with the control cigarette, the release of HCN in cigarette mainstream smoke could be effectively reduced with the use of PPS-1~3, the reduction rate of HCN per total particulate matter were 54.9%, 63.1% and 67.0%, respectively.
研究领域:
材料科学
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环境科学
·
烟草研究
✓ 已验证
DOI
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2018
·
IF 3.129
Qian Dun,Lei Yao,Zeyuan Deng,Hongyan Li,Jing Li,Yawei Fan,Bing Zhang
The volatile compounds were concentrated from hot-pressed and cold-pressed peanut oils by HS-SPME and were analyzed by GC-MS-O. In the present study, 101 volatiles were identified in the hot-pressed peanut oil samples, mainly including pyrazines, aldehydes, furans, alcohols and pyrroles, of which characteristic flavor compounds present fresh, fatty, nutty and baking flavor. Sixty-four volatiles were obtained from the cold-pressed peanut oil samples, mainly consisting of aldehydes, alcohols, hydrocarbons, furans and ketones, of which characteristic flavor compounds show fresh and nutty flavor. Our results indicated that hot-pressed peanut oil has an advantage over cold-pressed peanut oil in the retention of flavor components. Hence, the process method has a significant effect on the flavor components of peanut oil, and the present study may be helpful in evaluating peanut oil quality, as well as discrimination of hot-pressed and cold-pressed peanut oil.
研究领域:
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
Insects
·
2024
·Vol. 15
·期 11
·866
·
IF 2.7
Chen Wang,Dianxuan Wang,Fangfang Zeng,Liang Chen,Xinxin Zhao,Xi Zhu,Junji Yao,Yihan Li
Simple SummaryThe Indian meal moth,Plodia interpunctella(Hübner, 1813) (Lepidoptera: Pyralidae), exhibited significant differences in oviposition preference between normal-oleic peanuts (NOPs) and high-oleic peanuts (HOPs). In this study, we found key volatile organic compounds (VOCs) from NOP and HOP peanuts that were attractive or repellent toP. interpunctellafemales by gas chromatography/mass spectrometry (GC-MS), gas chromatography/electroantennographic detection (GC-EAD), and electroantennogram (EAG) analysis, as well as behavioral responses in Y-tube olfactometer and wind tunnel bioassays. The identification of key VOCs may provide a foundation for developing food-based attractants and repellents for pest control.The Indian meal moth,Plodia interpunctella(Hübner, 1813) (Lepidoptera: Pyralidae), a primary stored peanut insect pest, exhibited a significant difference in oviposition preference among normal-oleic peanuts (NOPs) and high-oleic peanuts (HOPs). Identifying key volatile organic compounds (VOCs) that are attractive or repellent toP. interpunctellais of great significance for the ecological management of pests. The profiles and contents of VOCs among NOP and HOP varieties were measured and compared, and key bioactive VOCs were further confirmed via an electroantennogram (EAG) analysis, as well as behavioral responses in Y-tube olfactometer and wind tunnel bioassays. Females prefer to lay eggs on NOP varieties more than on HOP ones. Acetophenone, nonanal, decanal, dodecane, 2,5-dimethylbenzaldehyde, and 4-ethyl-benzaldehy derived from tested peanuts elicited stronger antennal EAG responses. The results of the Y-tube olfactometer and wind tunnel bioassay showed that the relative high levels of nonanal, dodecane, and unique VOC acetophenone in NOP varieties have a significant attraction toP. interpunctella. Conversely, 4-ethyl-benzaldehyde and the unique VOC 2,5-dimethyl-benzaldehyde commonly found in HOP varieties exhibit notable repellent effects onP. interpunctella. These VOCs could contribute to the development of attractants or repellents derived from special peanut varieties for pest management.
研究领域:
昆虫学
·
生态学
·
害虫管理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Foods
·
2021
·Vol. 11
·期 1
·4
·
IF 4.35
Yuting Huang,Rui Ma,Yongju Xu,Kai Zhong,Qian Bu,Hong Gao
Peanuts are a rich dietary source of lipids, which are essential for human health. In this study, the lipid contents of 13 peanut cultivars were analyzed using UPLC-Q-TOF-MS and GC–MS. The OXITEST reactor was used to test their lipid oxidation stabilities. A total of 27 subclasses, 229 individual lipids were detected. The combined analysis of lipid and oxidation stability showed that lipid unsaturation was inversely correlated with oxidation stability. Moreover, lipid profiles differed significantly among the different peanut cultivars. A total of 11 lipid molecules (TG 18:2/18:2/18:2, TG 24:0/18:2/18:3, TG 20:5/14:1/18:2, TG 18:2/14:1/18:2, PE 17:0/18:2, BisMePA 18:2/18:2, PG 38:5, PMe 18:1/18:1, PC 18:1/18:1, MGDG 18:1/18:1, TG 10:0/10:1/18:1) might be employed as possible indicators to identify high oleic acid (OA) and non-high OA peanut cultivars, based on the PLS-DA result of lipid molecules with a VIP value greater than 2. This comprehensive analysis will help in the rational selection and application of peanut cultivars.Keywords:peanuts;oleic acid;lipidomics;oxidation stability
研究领域:
食品科学
·
植物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 16
·2755
·
IF 5.719
Yue Xu,Huan Liao,Jing Zhang,Haijun Lu,Xinghua He,Yi Zhang,Zhenbin Wu,Hongyu Wang,Minghua Lu
Recovery phosphorus (P) from P-contaminated wastewater is an efficient and environmentally friendly mean to prevent water pollution and alleviate the P shortage crisis. In this study, oyster shell as calcium sources and peanut shells as carbon sources (mass ratio 1:1) were used to prepare a novel Ca-modified biochar (OBC) via co-pyrolysis, and its potential application after P adsorption as a P biofertilizer for soil was also investigated. The results shown that OBC had a remarkable P adsorption capacity from wastewater in a wide range of pH 4–12. The maximum P adsorption capacity of OBC was about 168.2 mg/g with adsorbent dosage 1 g/L, which was about 27.6 times that of the unmodified biochar. The adsorption isotherm and kinetic data were better described by Langmuir isotherm model (R2> 0.986) and the pseudo second-order model (R2> 0.975), respectively. Characterization analysis of OBC before and after P adsorption by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and specific surface area and porosity analyzer (BET) indicated that the remarkable P adsorption capacity of OBC was mainly ascribed to chemical precipitation, electrostatic adsorption, and hydrogen bonding. Pot experiment results showed that OBC after P adsorption could significantly promote the germination and growth ofSpinacia, which manifested that OBC after P adsorption exhibited a good ability to be reused as P fertilizer for soil.Keywords:phosphorous;oyster shell;peanut shell;biochar;P biofertilizer
研究领域:
环境科学
·
农业科学
✓ 已验证
DOI
PubMed
高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Yang Liu,Yuanyuan Wang,Jie Ma,Runping Han
ABSTRACT In this study, peanut shell was modified using β-cyclodextrin (β-CD) and citric acid to improve the adsorption capacity for removal of lead ion (Pb 2+ ) and bisphenol S (BPS) from solution in batch mode. Scanning electron microscopy, Fourier-transform infrared spectroscopy, elemental analysis, X-ray fluorescence analysis, specific surface area analysis, thermogravimetric analysis, etc were used to characterize the adsorbent before and after modification. The results showed that the adsorbent was successfully modified. The adsorption results of Pb 2+ and BPS on β-CD-PS indicated that acidic conditions were not conducive to the adsorption of Pb 2+ , the adsorption of BPS basically remained unchanged at pH 2~7, and alkaline conditions were not conducive to the adsorption. The presence of salt had a negative effect on Pb 2+ , but had no effect on the adsorption of BPS. The Langmuir and Koble–Corrigan models could predict the equilibrium adsorption process of Pb 2+ while Temkin and Koble–Corrigan models could describe the equilibrium adsorption process of BPS. The adsorption quantity from experiments is 89.6 mg·g –1 for Pb 2+ and 16.2 mg·g –1 for BPS at 293 K, respectively. The adsorption process of Pb 2+ was consistent with the pseudo-first-order and Elovich models, indicating the presence of ion-exchange in the adsorption process; the adsorption of BPS was consistent with the pseudo-second-order model, indicating that chemisorption was the main rate-controlling step. Thermodynamic studies indicated that the adsorption of Pb 2+ was a spontaneous and endothermic reaction with increasing entropy, while the adsorption of BPS was a spontaneous and exothermic reaction with decreasing entropy. 0.1 mol·L –1 HNO 3 could desorb and regenerate the β-CD-PS adsorbed Pb 2+ for three times, and 75% C 2 H 5 OH had a better desorption and regeneration effect for BPS loaded β-CD-PS. β-CD-PS can effectively remove the lead ion and BPS from mixtures and the study can provide the basis for the effective utilization of peanut shell in environmental remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
·
2013
·Vol. 13
·期 10
·6953-6960
·
IF 1.149
Shi Haowei,Huang Yan,Cheng Chao,Ji Guoyuan,Yang Yuxiang,Yuan Hongming
The size- and shape-controlled Fe3O4@SiO2 nanocomposites were successfully synthesized via the sol–gel method. The results showed that the size, shape, and property of the products were directly influenced by the amount of TEOS, and the concentration
of water-based magnetic fluid in the coating process. The morphology and properties of the products were characterized by TEM, SEM, X-ray powder diffraction, IR and EDS. The Fe3O4@SiO2 composites with easily-controlled size arranged from 58 to 835 nm could
be synthesized by adjusting the experimental parameters. When TEOS amount is 1 mL and the concentration of magnetic fluid were 30.0 and 10.0 mg/mL respectively, chain-like and peanuts-like well-dispersed Fe3O4@SiO2 particles with clear core–shell structure
were obtained. These size- and shape-controlled Fe3O4@SiO2 composites may have potential application in the field of targeted drug delivery and MRI contrast agent.
研究领域:
材料科学
·
纳米医学
✓ 已验证
DOI
PubMed
高影响因子
Bioresources and Bioprocessing
·
2021
·Vol. 8
·期 1
·1-14
·
IF 4.578
Gong Zhenggang,Yang Guangxu,Song Junlong,Zheng Peitao,Liu Jing,Zhu Wenyuan,Huang Liulian,Chen Lihui,Luo Xiaolin,Shuai Li
Abstract Lignin deposits formed on the surface of pretreated lignocellulosic substrates during acidic pretreatments can non-productively adsorb costly enzymes and thereby influence the enzymatic hydrolysis efficiency of cellulose. In this article, peanut protein (PP), a biocompatible non-catalytic protein, was separated from defatted peanut flour (DPF) as a lignin blocking additive to overcome this adverse effect. With the addition of 2.5 g/L PP in enzymatic hydrolysis medium, the glucose yield of the bamboo substrate pretreated by phenylsulfonic acid (PSA) significantly increased from 38 to 94% at a low cellulase loading of 5 FPU/g glucan while achieving a similar glucose yield required a cellulase loading of 17.5 FPU/g glucan without PP addition. Similar promotion effects were also observed on the n-pentanol-pretreated bamboo and PSA-pretreated eucalyptus substrates. The promoting effect of PP on enzymatic hydrolysis was ascribed to blocking lignin deposits via hydrophobic and/or hydrogen-bonding interactions, which significantly reduced the non-productive adsorption of cellulase onto PSA lignin. Meanwhile, PP extraction also facilitated the utilization of residual DPF as the adhesive for producing plywood as compared to that without protein pre-extraction. This scheme provides a sustainable and viable way to improve the value of woody and agriculture biomass. Peanut protein, a biocompatible non-catalytic protein, can block lignin, improve enzymatic hydrolysis efficiency and thereby facilitate the economics of biorefinery. Graphical abstract
研究领域:
生物化学
·
可再生资源与环境
✓ 已验证
DOI
高影响因子
International Journal of Environmental Research and Public Health
·
2013
·Vol. 10
·期 7
·2897-2905
·
IF 1.998
Juan Peng,Shanshan Song,Liguang Xu,Wei Ma,Liqiang Liu,Hua Kuang,Chuanlai Xu
We have established a highly sensitive sandwich enzyme-linked immunosorbent assay (ELISA) based on two monoclonal antibodies (mAb) to measure the content of the major peanut allergen Ara h 1 in foods. Two mAbs were selected out of 12 murine hybridoma cells secreting Ara h 1-specific antibody. Using mAb 6 as the capture antibody and HRP-labelled mAb 4 as the detection antibody, the limit of detection (LOD) the assay was 0.34 ng/mL. Cross-reaction analysis showed that this method was strongly specific and had no cross-reactions with Ara h 2, pea protein or soy protein. Sample analysis showed that this ELISA was a useful tool to monitor peanut allergens in food products by measuring Ara h 1 content.Keywords:peanut allergen;Ara h 1;monoclonal antibody;sandwich ELISA
研究领域:
食品科学
·
免疫学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2017
·
IF 3.154
Fan Hou,Peipei Teng,Fengmao Liu,Wenzhuo Wang
Residue behaviors of tebuconazole and azoxystrobin in field condition and the variation of their residue levels during the boiling process were evaluated. The terminal residues of peanut kernels were determined by using a modified QuEChERS method (quick, easy, cheap, effective, rugged, and safe) by means of the optimization of the novel purification procedure with multiwalled carbon nanotubes (MWCNTs) and Fe3O4-magnetic nanoparticle (Fe3O4-MNP) in the presence of an external magnetic field, and the terminal residues were all at trace level at harvest time. The residues in shells were detected as well to investigate the distribution in peanuts. Tebuconazole and azoxystrobin residue levels varied before/after boiling in kernels and shells to different degrees due to various factors, such as the modes of action and physicochemical properties of pesticides. The residues have been transferred from peanut into the infusion during boiling with the higher percentage of azoxystrobin as its lower logKow. The processing factors (PFs) for tebuconazole and azoxystrobin after processing were <1, indicating that home cooking in this study could reduce the residue levels in peanut. Risk assessment showed there was no health risk for consumers.
研究领域:
食品科学
·
农业化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2022
·
IF 6.137
Xueqiang Liu,Diandi Li,Jiguang Li,Jianle Wang,Shujie Liang,Hong Deng
Heavy metal ion pollution (e.g., Hg, Pb, Cr, Cd) that has a great threat to human health is a global concern, because of their great toxicity (e.g., carcinogenicity and mutagenicity). Therefore, it is necessary to find an economical and efficient technology to remove metal. In recent years, modified biochar plays an important role in the removal of heavy metal. However, most of the biochar modification methods rely on high temperature and long time, which limits their application in practical engineering. In this study, we firstly synthesized HMBC (MnO X -OBC, peanut shells as raw materials) using H 2 O 2 -NaOH method, where the materials only need to be modified for 10 min at ambient temperature to obtain high adsorption performance. The maximum Pb(Ⅱ) and Cd(Ⅱ) adsorption capacities of HMBC were 164.59 mg g − 1 and 36.77 mg g − 1 , respectively, which were 7.2 times and 5.6 times that of the unmodified PBC (peanut shells derived biochar ) , and the main adsorption mechanisms were complexation, ion exchange, cation-π interaction and precipitation. The adsorption process of lead and cadmium by HMBC was more consistent with the Freundlich model and Pseudo-second-order adsorption kinetics . HMBC had high selectivity for lead and cadmium, and the adsorption performance of HMBC was basically not reduced after five cycles. The above experimental results show that the newly prepared HMBC has the potential to treat lead and cadmium industrial wastewater.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Jiaying Fang,Dantong Li,Jie Li,Qianqian Wang,Juntao Wang,Yixuanfei Gao,Yihang He,Chenhuan Wang
Aflatoxins are the most toxic and high-profile mycotoxins with high occurrence in grain and nuts. To effectively adsorb and sensitively detect aflatoxins in peanuts, two novel covalent organic frameworks (TF-COF, TH-COF) were fabricated by Schiff-base reaction of N,N,N′,N′-tetra ( p -aminophenyl)- p -phenylenediamine with 2,3,5,6-tetra-fluoroterephthaldehyde and terephthalendehyde, respectively. The TF-COF shows higher adsorption capacity (35–44 mg g −1 ) for aflatoxins than TH-COF (26–37 mg g −1 ) because abundant fluorine functional groups in TF-COF offer more adsorption sites. A sensitive and practical method for determining aflatoxins (G 2 , G 1 , B 2 and B 1 ) in peanuts was developed by combining TF-COF-based extraction technology with high performance liquid chromatography-fluorescence detector. The method provides outstanding performance with linear range of 0.025 ng g −1 -20.0 ng g −1 , detection limits of 0.008 ng g −1 -0.15 ng g −1 , recovery of 86.3 %–116 %, and relative standard deviation below 7.8 %. This study opens a new avenue to develop functionalized COF with distinguished performance for adsorbing hazards in food and/or environmental samples.
研究领域:
食品安全
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）