JOURNAL OF APPLIED ENTOMOLOGY
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2023
·Vol. 147
·期 10
·924-930
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IF 1.9
Jia Zhou,Li-Lin Chen,Yu-Tong Zhu,Evan Siemann,Nian-Feng Wan
Sunflowers ( Helianthus annuus ) are potential trap crops to attract the yellow peach moth ( Conogethes punctiferalis ) in orchards but the volatile compounds released from sunflowers and their effects on C. punctiferalis behaviour are not clear. Here we used solid phase micro-extraction to collect volatiles released from flower disks of sunflowers, identified them by gas chromatography–mass spectrometry, and examined the attractiveness of some of the compounds to mated female adult C. punctiferalis moths in Y-tube olfactometer choice tests. We detected nine volatile compounds (α-Pinene, β-Phellandrene, Camphene, β-Pinene, 3-Carene, D-Limonene, Eucalyptol, γ-Terpinen, and Valencene) with consistently large peak areas for α-Pinene and β-Phellandrene. Among tested volatiles, both α-Pinene and β-Phellandrene were attractive to C. punctiferalis in olfactometer tests but this was only significant for higher concentrations of β-Phellandrene. This suggests that β-Phellandrene may promote C. punctiferalis oviposition on sunflower disks. This study provides insights into volatile chemical mediated responses of insect herbivores to trap crops.
研究领域:
昆虫学
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植物化学
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DOI
高影响因子
Scientific Reports
·
2021
·Vol. 11
·期 1
·1-10
·
IF 4.38
Ma Yinzheng,Wang Yuanxiao,Zhou Xia,Yang Heng,Zhang Huixin,Chen Wenhan,Zhang Haiying,Zhang Yunxia,He Xiaowen
Clausena lansium (Lour.) Skeels seeds have been shown to have diverse beneficial medical value due to their unique active components. This study analysed the composition of essential oils (EOs) of C. lansium seeds and investigated their potential antifungal effects against Candida strains . A total of forty-six components were identified in all samples by gas chromatography-mass spectrometry (GC–MS). The main components were sabinene, β -phellandrene and 4-terpineol. Thirteen EOs of C. lansium seeds were classified into three clusters based on their components. Cluster analysis showed that the difference between the tropics and subtropics was the greatest. These EOs and the three main chemicals showed different antifungal activities against five Candida species ( C. albicans , C. tropicalis , C. glabrata , C. krusei and C. parapsilosis ). The antifungal activity against C. glabrata and C. krusei was higher than that against other Candida strains. EOs of C. lansium seeds displayed noteworthy antifungal activity against both sensitive and fluconazole-resistant strains, with inhibition zone diameters in the range of 9.4–23.4 mm. Comprehensive analysis illustrated the importance of sabinene, β -phellandrene and 4-terpineol to antifungal activity, and there may be some synergistic effects with other components. These results represent the first report about the correlation between the chemical composition of EOs of C. lansium seeds and antifungal activity. Taken together, the results obtained provide scientific evidence for the traditional use of C. lansium seeds waste.
研究领域:
植物化学
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微生物学
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药理学
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DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Xiao Jia,Hongli Cui,Song Qin,Jingnan Ren,Zhifeng Zhang,Qi An,Nawei Zhang,Jinchu Yang,Yongfeng Yang,Gang Fan,Siyi Pan
Processing is an indispensable technology in the preparation of Spirulina platensis ( S. platensis ). The key odorants in liquids, muds, and powders from S. platensis (NM and GZ) were characterized. A total of 90 odorants were identified and 41 odorants were sniffed with the flavor dilution (FD) factors ranging from 1 to 729. Among them, nonanal, decanal, d -limonene, β -cyclocitral, and β -ionone with FD factors ≥1 were detected in S. platensis during the whole processing stages. In addition, heptanal, ( E , E )-2,4-nonadienal, trans -4,5-epoxy-( E )-2-decenal, 1-hepten-3-one, isophorone, 3-ethyl-2,5-dimethylpyrazine, and α -ionone exhibited higher odor activity values in powders; β -myrcene, methional, and S -methyl methanethiosulphonate were key odorants in muds; while trans -3-penten-2-ol was key odorant in liquids. Besides, the GZ-mud presented stronger earthy and fishy odor than NM - mud. S. platensis powders have the stronger grassy odor, roasted odor, and marine odor than S. platensis muds. Overall, drying process promotes the formation of aldehydes, heterocyclic compounds, and terpenoids.
研究领域:
食品科学
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分析化学
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微生物学
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DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2020
·
IF 7.1
Zhenhe Wang,Wei Chen,Shuang Gu,Jun Wang,Yongwei Wang
Trunk borers infestation is difficult to detect because larvae always mine inside trees. However, plants volatile organic compounds (PVOCs) usually change markedly after pests damage which provide us an opportunity to identify trunk borers infestation. Herein, a four-element quartz crystal microbalance (QCM) gas sensor array based on molecularly imprinted polymers (MIPs) was reported for the discrimination of Semanotus bifasciatus (Motschulsky) and Phloeosinus aubei Perris (Coleoptera: Scolytidae) infested Platycladus orientalis (L.) Franco trunks. MIPs were prepared using the methacrylic acid (MAA) polymer matrix and four characteristic PVOCs (α-pinene, β-phellandrene, 3-carene and cis-thujopsene) as templates molecules, repectively. The amounts of MIPs dropped on the QCM chips were investigated and optimized according to the sensitivities and response times. Finally, the sensor array was applied to detect PVOCs of P. orientalis trunks with S. bifasciatus and P. aubei infestation, and the response matrix were processed with principal component analysis (PCA) and linear discrimination analysis (LDA) for visualization, and further discrimination was performed by k-nearest neighbor (KNN), probabilistic neural network (PNN) and support vector machine (SVM). SVM exhibited satisfying identification accuracy rates in both calibration set (97.62 %) and validation set (93.75 %). This study may contribute to gas sensor arrays development in areas of pest control and forest protection.
研究领域:
植物保护
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林业科学
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DOI
高影响因子
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
·
2023
·Vol. 103
·期 6
·2838-2847
·
IF 4.1
Xiaomin Zhang,Gaofeng Hu,Chaoyang Xu,Wen Nie,Kezhou Cai,Hongmei Fang,Baocai Xu
BACKGROUND Ginger and its extracts have been frequently used in food processing and pharmaceuticals. However, the influence of ginger and its key compounds on benzo[a]pyrene (BaP) production in meat processing has not been investigated. The purpose of this study was to explore the effect of application of ginger and its important active ingredients on BaP formation and the mechanism of inhibiting BaP formation in charcoal-grilled pork sausages. RESULTS The DPPH scavenging (23.59–59.67%) activity and the inhibition rate of BaP (42.1–68.9%) were significantly increased ( P < 0.05) with increasing ginger addition. The active components extracted by supercritical carbon dioxide from ginger were identified by gas chromatography–mass spectrometry and 14 representative compounds (four terpenes, two alcohols, two aldehydes, four phenols and two other compounds, totaling 77.57% of the detected compounds) were selected. The phenolic compounds (eugenol, 6-gingerol, 6-paradol and 6-shogaol, accounting for 29.73% of the total composition) in ginger played a key role and had the strongest inhibitory effect on BaP (61.2–68.2%), whereas four other kinds of compound showed obviously feeble inhibitory activity (6.47–17.9%). Charcoal-grilled sausages with phenolic substances had lower values of thiobarbituric acid-reactive substances, carbonyl and diene (three classic indicators of lipid oxidation) ( P < 0.05). CONCLUSION Ginger and its key compounds could effectively inhibit the formation of BaP in charcoal-grilled pork sausages. Phenolic compounds make the strongest contribution to the inhibition of Bap formation, and the inhibitory mechanism was related to the inhibition of lipid oxidation. © 2023 Society of Chemical Industry.
研究领域:
食品科学
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毒理学
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化学
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DOI
PubMed
高影响因子
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