Foods
·
2023
·Vol. 12
·期 19
·3567
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IF 5.2
Yiwen Liu,Hong Zhang,Juan Xu,Rui He,Jinju Ma,Chiqing Chen,Lanxiang Liu
In this study, we addressed various challenges associated with the consumption of functional lipids from theEricerus pela(Chavannes), including unfavorable taste, insolubility in water, difficulty in oral intake, low bioavailability, and low psychological acceptance. Our study focused on the microencapsulation of policosanol, the key active component of insect wax, which is a mixture of functional lipids secreted by theEricerus pela(Chavannes). We developed two innovative policosanol products, microcapsules, and effervescent tablets, and optimized their preparation conditions. We successfully prepared microcapsules containing insect wax–derived policosanol using the spray-drying method. We achieved 92.09% microencapsulation efficiency and 61.67% powder yield under the following conditions: maltodextrin, starch sodium octenyl succinate, and (2-hydroxy)propyl-β-cyclodextrin (HPβCD) at a ratio of 1:1:1, core-to-wall materials at a ratio of 1:10, 15% solid content, spray dryer feed temperature at 60 °C, inlet air temperature at 140 °C, and hot-air flow rate at 0.5 m3/min. The microcapsules exhibited a regular spherical shape with a minimal water content (1.82%) and rapid dispersion in water (within 143.5 s). These microcapsules released policosanol rapidly in simulated stomach fluid. Moreover, effervescent tablets were prepared using the policosanol-containing microcapsules. The tablets showed low friability (0.32%), quick disintegration in water (within 99.5 s), and high bubble volume. The microcapsules and effervescent tablets developed in this study presented effective solutions to the insolubility of policosanol in water. These products were portable and offered customizable tastes to address the psychological discomfort related to insect-based foods, thus providing a novel strategy for the consumption and secondary processing of insect lipids.Keywords:edible insect;functional insect lipids;insect wax–derived policosanol;microcapsules;effervescent tablets
研究领域:
食品科学
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生物技术
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DOI
PubMed
高影响因子
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION C-A JOURNAL OF BIOSCIENCES
·
2022
·
IF 1.885
Xiujuan Pan,He Xiao,Xinping Hu,Zhi Long Liu
The aim of this research was to evaluate insecticidal activities of the essential oil of Rhynchanthus beesianus rhizomes against adults of Liposcelis entomophila and Tribolium castaneum . Gas chromatography-mass spectrometry analyses revealed the presence of 44 compounds with β -eudesmol (19.1%), elemol (8.1%), α -terpineol (8.0%), methyl eugenol (6.5%), and caryophyllene (4.8%) being the major constituents. Bioactivity-directed chromatographic separation of the oil led to the isolation of four constituents, elemol, β -eudesmol, methyl eugenol, and α -terpineol. The essential oil exhibited fumigant toxicity against the adults of L. entomophila and T. castaneum with LC 50 values of 0.57 and 4.96 mg/L air while the two isolates, methyl eugenol and α -terpineol possessed fumigant toxicity against the booklice (LC 50 = 0.15 and 0.48 mg/L air, respectively) and the beetles (LC 50 = 1.81 and 4.96 mg/L air, respectively). The oil also possessed contact toxicity against the booklice and the beetles with LD 50 values of 121.56 μg/cm 2 and 54.93 μg/adult, respectively, while the two isolates β -eudesmol and elemol showed contact toxicity against L. entomophila (LD 50 = 99.21 and 35.19 μg/cm 2 , respectively) and T. castaneum (LD 50 = 35.26 and 8.89 μg/adult, respectively). The results indicate that the oil of R. beesianus rhizomes and its isolates have potential as a source for natural insecticides.
研究领域:
植物化学
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昆虫学
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天然产物研究
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DOI
PubMed
高影响因子
LUMINESCENCE
·
2024
·Vol. 39
·期 4
·e4737
·
IF 3.2
Haoquan Li,Haoyi Wu,Lei Zhang,Shuyu Qin,Jianjun Song,Yahong Jin,Yihua Hu
The predominant method for pest control has been the use of pesticides, which have been shown to have detrimental effects on soil, freshwater, and crop quality. Therefore, the development of novel and sustainable crop protection strategies has become increasingly imperative. In this study, a novel orange–red emitting Ba 2 SrWO 6 : Sm 3+ phosphor was synthesized using the high-temperature solid-state reaction. Under ultraviolet excitation, the phosphors showed obvious emission peaks at 575, 614, and 662 nm. The Ba 2 SrWO 6 : Sm 3+ was used to fabricate a fluorescence film with polydimethylsiloxane (PDMS), and attracted twice as many insects as the blank control group under 365 nm ultraviolet light. This material holds great potential as a fluorescent agent for insect trapping in the pest control fields of tea, cotton, eggplant, rice, potato, grape, and other agricultural industries. Our findings provide an eco-friendly approach to pest management for the increment of food production.
研究领域:
农业科学
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材料科学
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生态学
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DOI
PubMed
高影响因子
Integrative Zoology
·
2024
·
IF 3.5
Yuxin ZHANG,Handan XU,Chengjie TU,Runhua HAN,Jing LUO,Letian XU
Herbicides have demonstrated their impact on insect fitness by affecting their associated microbiota or altering the virulence of entomopathogenic fungi toward insects. However, limited research has explored the implications of herbicide stress on the intricate tripartite interaction among insects, associated bacterial communities, and entomopathogens. In this study, we initially demonstrated that associated bacteria confer a leaf beetle, Plagiodera versicolora , with the capability to resist the entomopathogenic fungus Aspergillus nomius infection, a capability sustained even under herbicide glyphosate stress. Further analysis of the associated microbiota revealed a significant alteration in abundance and composition due to glyphosate treatment. The dominant bacterium, post A. nomius infection or following a combination of glyphosate treatments, exhibited strong suppressive effects on fungal growth. Additionally, glyphosate markedly inhibited the pathogenic associated bacterium Pseudomonas though it inhibited P. versicolora ’s immunity, ultimately enhancing the beetle's tolerance to A. nomius . In summary, our findings suggest that the leaf beetle's associated microbiota bestow an augmented resilience against the dual stressors of both the entomopathogen and glyphosate. These results provide insight into the effects of herbicide residues on interactions among insects, associated bacteria, and entomopathogenic fungi, holding significant implications for pest control and ecosystem assessment.
研究领域:
昆虫学
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微生物学
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生态毒理学
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环境科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2020
·
IF 4.192
Huimin Zhao,Aiping Yang,Nan Zhang,Shiyang Li,Tianjie Yuan,Ning Ding,Siwang Zhang,Sheng Bao,Chang Wang,Yinan Zhang,Xiachang Wang,Lihong Hu
The discovery of new, safe, and effective pesticides is one of the main means for modern crop protection and parasitic disease control. During the search for new insecticidal secondary metabolites from endophytes in Stemona sessilifolia (a traditional Chinese medicine with a long history as an insecticide), 10 new insecticidal endostemonines A–J (1–10) were identified from an endophytic Streptomyces sp. BS-1. Their structures were determined by comprehensive spectroscopic analysis. Endostemonines A–J represent the first reported naturally occurring pyrrole-2-carboxylic ester derivatives, which consisted of different fatty acid chains at the C-2 of pyrrole ring were produced by traditional Chinese medicine endophytic microbes. All new tested compounds exhibited strong lethal activity against Aphis gossypii (LC50 value range of 3.55–32.00 mg/L after 72 h). This research highlighted the discovery of pesticide natural products from insecticidal medicinal plant endophytes for the first time, paving a new pathway for the development of pest control.
研究领域:
植物学
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农药开发
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微生物学
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DOI
PubMed
高影响因子
PEST MANAGEMENT SCIENCE
·
2023
·Vol. 79
·期 8
·2713-2724
·
IF 4.1
Lang Ming,Yuan-Wen Du,Ge-Ge Yuan,Qi Su,Xiao-Bing Shi,Huan Yu,Gong Chen
Background Herbivore-induced plant volatiles (HIPVs) are important self-defense outputs of pepper plants to resist insect pests. Ascoviruses are pathogenic to the larvae of most lepidopteran vegetable pests. However, whether Heliothis virescens ascovirus 3h (HvAV-3h)-infected Spodoptera litura larvae can change pepper leaf HIPVs is not well understood. RESULTS Spodoptera litura larvae preferred S. litura -infested leaves, and this preference was stronger with longer duration of S. litura infestation. In addition, S. litura larvae significantly chose pepper leaves damaged by HvAV-3h-infected S. litura over the healthy pepper leaves. Results also showed that S. litura larvae preferred leaves mechanically damaged and treated with oral secretions from HvAV-3h infected- S. litura larvae in a simulation test. We captured the volatiles emitted by leaves under six treatments. Results showed that the volatile profile changed with the different treatments. Testing of volatile blends, prepared to the proportion released showed that the blend from simulated HvAV-3h-infected S. litura larvae-damaged plants was the most attractive to S. litura larvae. Further, we also found that some of the compounds significantly attracted S. litura larvae at specific concentrations. CONCLUSION HvAV-3h-infected S. litura can alter the release of HIPVs in pepper plants and thus become more attractive to S. litura larvae. We speculate that this may be due to alterations in the concentration of some compounds (such as geranylacetone and prohydrojasmon) affecting the behavior of S. litura larvae. © 2023 Society of Chemical Industry.
研究领域:
植物学
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昆虫学
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生态学
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产品关联
DOI
PubMed
高影响因子
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
·
2024
·
IF 4.2
Zhe-Ran Wu,Yi-Wen Pei,Xiao-Qing Zhang,Min Lu,Xiao-Long Liu
Chemical sensing systems are vital in the growth and development of insects. Orius sauteri (Poppius) (Hemiptera: Anthocoridae) is an important natural enemy of many pests. The molecular mechanism of odorant binding proteins (OBPs) binding with common insecticides is still unknow in O. sauteri . In this study, we expressed in vitro OsauOBP8 and conducted fluorescence competition binding assay to investigate the function of OsauOBP8 to insecticides. The results showed that OsauOBP8 could bind with four common insecticides (phoxim, fenitrothion, chlorpyrifos, deltamethrin). Subsequently, we used molecular docking to predict and obtained candidate six amino acid residues (K4, K6, K13, R31, K49, K55) and then mutated. The result showed that three key residues (K4, K6, R31) play important role in OsauOBP8 bound to insecticides. Our study identified the key binding sites of OsauOBP8 to insecticides and help to better understand the molecular mechanism of OBPs to insecticides in O. sauteri .
研究领域:
昆虫学
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分子生物学
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DOI
PubMed
高影响因子
CHEMISTRY & BIODIVERSITY
·
2020
·Vol. 17
·期 4
·e1900696
·
IF 2.039
Zhiping Che,Jinming Yang,Di Sun,Yuee Tian,Shengming Liu,Xiaomin Lin,Jia Jiang,Genqiang Chen
Endeavor to discover biorational natural products-based insecticides, two series (30) of novel (9 S )-acyloxy derivatives of quinidine and dihydroquinidine were prepared and assessed for their insecticidal activity against Mythimna separata in vivo by the leaf-dipping method at 1 mg/mL. Among all the compounds, especially four derivatives exhibited the best insecticidal activity with final mortality rates of 71.4 %, 75.0 %, 71.4 %, and 75.0 %, respectively. Relatively speaking, 9-hydroxy group is well tolerated, and the results showed that after modification of the hydroxy group with an acyloxy group, the insecticidal activity was significantly increased; the configuration at C8/9 position is important for insecticidal activity, and the (9 S )-configuration is optimal; modification of the out-ring double bond is acceptable, and hydrogenation of the double bond enhances insecticidal activity. These preliminary results will pave the way for further modification of quinidine in the development of potential new insecticides. Graphical
研究领域:
有机化学
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农药科学
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药理学
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DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2020
·
IF 4.244
Shujie Ma,Ran Jia,Menglei Guo,Kaitao Qin,Lihui Zhang
Plant essential oils (EOs) could be used as new alternatives of synthetic insecticides due to their environmental friendliness, safety to non-target organisms, and low-level resistance. In this study, the essential oil of Cephalotaxus sinensis (CSEO), an important Chinese medicinal species, showed potent insecticidal activity against Megoura japonica, Plutella xylostella and Sitophilus zeamais in laboratory bioassays; CSEO 20 % emulsifiable concentrate exhibited the control efficacy of 85.67 % against M . japonica after 7 days treatment at concentration of 0.25 % (w/v) in the greenhouse experiment. The GC-MS results showed that the main components of CSEO were α-pinene (37.89 %), β-caryophyllene (16.78 %) and germacrene D (10.79 %). Five active compounds, β-elemene (1) , β-caryophyllene (2) , β-phellandrene (3) caryophyllene oxide (4) and α-pinene (5) were isolated from CSEO. β-Caryophyllene (2) exhibited highest contact toxicity against M. japonica and P. xylostella , with the median lethal dose (LD 50 ) values of 0.072 μg/adult and 0.32 μg/larva, respectively. α-Pinene (5) showed the highest fumigant toxicity against M. japonica and P. xylostella , with the median lethal concentration (LC 50 ) values of 6.74 and 7.35 mg/L, respectively. Furthermore, β-phellandrene (3) had the potent contact and fumigant toxicity against S. zeamais with the LD 50 and LC 50 value of 2.19 μg/adult and 3.57 mg/L, respectively. Thus, CSEO and their major components have the potential to be developed as novel botanical insecticides for the control of agricultural pests.
研究领域:
植物学
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农业科学
·
害虫防治
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DOI
高影响因子
FOOD CHEMISTRY
·
2020
·
IF 6.306
Ricardo A. Wu,Qingzhi Ding,Litao Yin,Xiuwei Chi,Nianzhen Sun,Ronghai He,Lin Luo,Haile Ma,Zhikun Li
There is increasing interest in using insects as an alternative nutrient source and Mysore thorn borer (MTB) ( Anoplophora chinensis ) might have nutritional and functional relevance for humans. The nutritional composition of MTB (amino acids, fatty acids, and elements profiles) was examined and compared with mealworm larva (MWL) ( Tenebrio molitor ). MTB was found to contain 19 amino acids, including all essential amino acids. A total of 16 fatty acids were detected including polyunsaturated fatty acids (e.g. α-linolenic acid and linoleic acid). Moreover, MTB had a low n − 6/n − 3 ratio and contained some essential elements, such as iron, zinc, calcium, and potassium. These results demonstrated that MTB might be a potential source of nutritional compounds for human consumption.
研究领域:
营养学
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昆虫学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PEST SCIENCE
·
2024
·
IF 4.3
Liu Yu-Xiao,Han Wen-Hao,Wang Jun-Xia,Zhang Feng-Bin,Ji Shun-Xia,Zhong Yu-Wei,Liu Shu-Sheng,Wang Xiao-Wei
Plants face an array of insect herbivores and have evolved complex defense approaches against various insect feeding strategies. However, little is known about how plants respond to successive attacks by herbivores with different feeding modes and coordinate their diverse defense mechanisms. In this study, we unveil that inducible jasmonic acid (JA) accumulation in response to leaf-chewing insects augments plant resistance and repellence to sequential leaf-chewing insect (caterpillar) and phloem-feeding insect (whitefly) infestations. Conversely, constitutive and whitefly inducible salicylic acid (SA) accumulation exclusively bolsters defense against later-stage whitefly invasion. Through assessments of herbivore performance and preferences on wild-type, JA-deficient, and SA-deficient plants, we show that JA/SA levels regulate plant resistance to both initial and sequential herbivores. Notably, JA or SA accumulation due to caterpillar or whitefly attacks does not substantially affect constitutive levels of the other compound, despite their antagonistic crosstalk. Furthermore, exogenous JA application in tobacco elicits efficient defense against successive caterpillar and whitefly assaults, surpassing SA's efficacy, albeit with associated growth penalties. Our discoveries demonstrate that plants can tailor their defense strategies against initial and sequential insects with different feeding modes. This customized defense is facilitated by JA/SA responses and their intricate cross-talk while taking account of the growth-defense trade-off.
研究领域:
植物学
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生态学
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产品关联
DOI
高影响因子
CHEMISTRY OF NATURAL COMPOUNDS
·
2020
·Vol. 56
·期 5
·842-844
·
IF 0.653
Ding Weijia,Wu Zhihui,Qin Chan,Xie Jiayan,Chen Min,Li Chunyuan
A new phenolic derivative, ethyl 4-ethoxy-2-hydroxy-3,6-dimethylbenzoate ( 1 ), was obtained from the fungus Nigrospora sphaerica ZMT05 isolated from Oxya chinensis Thunberg. Its structure was elucidated by comprehensive spectroscopic analyses. This compound showed high antifungal activity against Penicillium italicum and moderate activity against Fusarium oxysporum, Colletotrichum musae, and Fusarium graminearum.
研究领域:
微生物学
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天然产物化学
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植物病理学
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DOI
高影响因子
危险品化学品经营许可证（带存储）