Use of plant oils from the southwestern Amazon for the control of maize weevil

Santos, Ana Cláudia Vieira dos; Fernandes, Carromberth Carioca; Lopes, Lucas Martins; Sousa, Adalberto Hipólito de

doi:10.1016/j.jspr.2015.07.002

Cited by 20 publications

(10 citation statements)

References 24 publications

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“…Butter), pomegranate ( Punica granatum ), and grapes ( Vitis labrusca cv. Bordeaux) are also used in the production of oils in Brazil, however, these are less expressive, that is, on a smaller scale [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition, Antioxidant, Antimicrobial and Cytotoxic/Cytoprotective Activity of Non-Polar Extracts of Grape (Vitis labrusca cv. Bordeaux) and Blackberry (Rubus fruticosus) Seeds

et al. 2021

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The aim of this study was to compare the influence of the extraction method, chemical composition, antimicrobial effects, antioxidant activity, and cytotoxicity on human cells of the non-polar extracts of grape (Vitis labrusca) and blackberry (Rubus fruticosus) seeds. The Soxhlet (Sox), Bligh–Dyer (BD), and ultrasound (US) methods were used for extractions. For blackberry non-polar seed extract, extraction via the BD method showed the highest mean values of total phenolic content (TPC), expressed in milligrams of gallic acid equivalent per 100 mL of non-polar seed extracts (102.37 mg GAE/100 mL), and higher antioxidant activity in relation to the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical, expressed in milligrams of gallic acid equivalent per 100 mL of non-polar seed extracts (11.50 mg AAE/100 mL), if compared with the Sox and US extractions. Similar results were obtained for the non-polar grape seed extracts, where BD extraction obtained the highest values for TPC (28.61 mg GAE/100 mL) and DPPH (35.36 mg AAE/100 mL). The type of extraction method had an impact on the composition of fatty acids. Only the non-polar blackberry and grape seed extracts obtained via the Sox method showed some in vitro inhibitory effect against Escherichia coli (IAL 2064) and Staphylococcus aureus (ATCC 13565). Regardless of the extraction method used, the non-polar blackberry and grape seed extracts did not decrease the cell viability (IC50 >1000 µg/mL) of cancer and normal cell lines, thus indicating the relative safety of the extracts. All the seed extracts decreased the generation of reactive oxygen species in the cell lines. Blackberry and grape seed lipid fractions can be utilized as antioxidants, and the extraction methods used cause significant changes in relation to their bioactivity and chemical composition.

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Section: Introductionmentioning

confidence: 99%

Chemical Composition, Antioxidant, Antimicrobial and Cytotoxic/Cytoprotective Activity of Non-Polar Extracts of Grape (Vitis labrusca cv. Bordeaux) and Blackberry (Rubus fruticosus) Seeds

et al. 2021

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“…The observation was also in line with Babarinde et al (2014) who reported the fumigant toxicity of the EO obtained from the freshly harvested H. opposita leaves against T. castaneum. Santos et al (2015) recently reported the toxicity of plant oils from southwestern Amazon against S. zeamais. The fumigant toxicity of the EOs implies that they could be used in controlling Sitophilus species infesting cereals at small concentrations without direct contact with the target organisms.…”

Section: Discussionmentioning

confidence: 99%

Comparative sensitivity of maize weevil to essential oil of Hoslundia opposita Vahl leaves subjected to different drying regimes

Babarinde

Olaniran²,

Usman³

et al. 2017

Acta fytotechn zootechn

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Botanical essential oils (EOs) are effective alternatives to over-dependence on synthetic insecticides in stored product protection. However, the burden of handling bulky fresh botanicals needed for EO extraction and the tendency of the freshly harvested botanical to rot in transit, if wrongly handled, can be bottlenecks to pilot scale application of EO. Therefore, this study evaluates the comparative efficacy of the EOs obtained from freshly harvested Hoslundia opposita Vahl (Lamiaceae) and plants exposed to different shade-drying regimes (1-5 days) against maize weevil, Sitophilus zeamais Motschulsky, under laboratory conditions. Evaluation included fumigant toxicity and repellence bioassays. At 2 hours after exposure (HAE), EO of freshly harvested H. opposita leaves caused significantly (P <0.001) lower mortality (53.30%) than the value observed in H. opposita leaves dried for 5 days (90.00%). The lethal time for 90.00% of the weevils (LT 90 ) obtained in EO from H. opposita leaves dried for 5 days (2.00 h) was significantly lower than 2.80 and 7.14 h obtained in EOs from the fresh and 1 day-dried leaves, respectively. At 1 HAE, EOs obtained from H. opposita leaves dried for 4 and 5 days caused 60.00% repellence which was significantly higher than 20.00% observed in fresh leaves. At 2 HAE, EOs obtained from H. opposita dried for 4 and 5 days caused significantly higher repellence (100.00 and 80.00%, respectively) than what was observed in fresh leaves (70.00%). The results imply that shade drying freshly harvested H. opposita leaves has no deleterious effects on the efficacy of its EO against maize weevil.

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“…No ambiente de armazenamento, destaca-se a espécie Sitophilus zeamais (Coleoptera: Curculionidae), que é uma praga que causa destruição de grãos de cereais (SANTOS et al, 2015).…”

Section: Fundamentação Teóricaunclassified

TOXICIDADE POR CONTATO DO COMPOSTO EUGENOL SOBRE Sitophilus zeamais EM MILHO

dos¹,

Rufino²,

Oliveira³

et al. 2018

Ciência, Tecnologia E Desenvolvimento Rural: Compartilhando Conhecimentos Inovadores E Experiências

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Brasil destaca-se por ser um dos maiores produtores de grãos do mundo. A estimativa da produção brasileira de grãos para a safra 2016/2017 é de 210,3 milhões de toneladas (CONAB, 2016). Têm sido evidenciadas perdas durante os processos de pré-processamento e armazenamento com o aumento na produção de milho. Cruz (2014) afirma que as percas podem ser em torno de 30% em alguns casos, das quais 10% estão relacionadas aos ataque de insetos de grãos armazenamento. Dentre as pragas associadas aos grãos armazenados no Brasil, o gorgulho Sitophilus zeamais (Mots., 1855) (Coleoptera: Curculionidae) destaca-se como uma das mais significativas, devido ao número de hospedeiros, elevado potencial biótico, capacidade de penetração na massa de grãos e infestação cruzada, ocasionando danos, sobretudo nas sementes e grãos de milho, arroz e trigo (GALLO et al., 2002). A preocupação dos consumidores em relação ao ambiente, à qualidade do alimento e aos efeitos colaterais causados pelos inseticidas sintéticos têm incentivado os pesquisadores a testar alternativas para o controle de pragas de grãos armazenados, como os inseticidas de origem vegetal obtidos de plantas (RAJENDRAN, SRIRANJINI 2008).

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Use of plant oils from the southwestern Amazon for the control of maize weevil

Cited by 20 publications

References 24 publications

Chemical Composition, Antioxidant, Antimicrobial and Cytotoxic/Cytoprotective Activity of Non-Polar Extracts of Grape (Vitis labrusca cv. Bordeaux) and Blackberry (Rubus fruticosus) Seeds

Chemical Composition, Antioxidant, Antimicrobial and Cytotoxic/Cytoprotective Activity of Non-Polar Extracts of Grape (Vitis labrusca cv. Bordeaux) and Blackberry (Rubus fruticosus) Seeds

Comparative sensitivity of maize weevil to essential oil of Hoslundia opposita Vahl leaves subjected to different drying regimes

TOXICIDADE POR CONTATO DO COMPOSTO EUGENOL SOBRE Sitophilus zeamais EM MILHO

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