| 1. |
- Castelan, Florence P., et al.
(författare)
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Natural Ecosystem Surrounding a Conventional Banana Crop Improves Plant Health and Fruit Quality
- 2018
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Ingår i: Frontiers in Plant Science. - : Frontiers Media S.A.. - 1664-462X. ; 9
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Tidskriftsartikel (refereegranskat)abstract
- Natural ecosystems near agricultural landscapes may provide rich environments for growing crops. However, the effect of a natural ecosystem on crop health and fruit quality is poorly understood. In the present study, it was investigated whether the presence of a natural ecosystem surrounding a crop area influences banana plant health and fruit postharvest behavior. Plants from two conventional banana crop areas with identical planting time and cultural practices were used; the only difference between banana crop areas is that one area was surrounded by a natural forest (Atlantic forest) fragment (Near-NF), while the other area was inserted at the center of a conventional banana crop (Distant-NF). Results showed that bananas harvested from Near-NF showed higher greenlife and a more homogeneous profile during ripening compared to fruits harvested from Distant-NF. Differences in quality parameters including greenlife, carbohydrate profile, and pulp firmness between fruits harvested from Near-NF and Distant-NF are explained, at least partly, by differences in the balance of plant growth regulators (indole-3-acetic acid and abscisic acid) in bananas during ripening. Furthermore, plants from Near-NF showed a lower severity index of black leaf streak disease (BLSD) and higher levels of phenolic compounds in leaves compared to plants from Distant-NF. Together, the results provide additional evidence on how the maintenance of natural ecosystems near conventional crop areas could be a promising tool to improve plant health and fruit quality.
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| 2. |
- Castro Alves, Victor, 1986-, et al.
(författare)
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Aroma-Active Compounds of Capsicum Chinense Var. Biquinho
- 2014. - 1
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Ingår i: Flavour Science. - Salt Lake City : Academic Press. - 9780123985491 ; , s. 567-571
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Bokkapitel (refereegranskat)abstract
- Capsicum chinense var. Biquinho presents a strong aroma without the burning pepper sensation. Headspace volatile compounds were isolated by SPME and analyzed by GC-FID, GC-MS, and GC-O. The major compounds profile showed similarity to the profile of spicier peppers, but several minor compounds presented high importance to Biquinho’s characteristic flavor. Aromagram showed 72 compounds; where α-cardinol, heptylisopentanoate, p-xylene, isohexanol, hexyl butanoate, and (Z)-3-hexenyl pentanoate may be potential markers for the sweet and mild pepper flavor of Biquinho. In future, genetic materials of other chili peppers may have crosses with this pepper, which will improve their sensory characteristics.
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| 3. |
- Castro Alves, Victor, 1986-, et al.
(författare)
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Sensory and Volatile Compounds Profile of Thap Maeo Banana : an Option for the Replacement of Pest-susceptible Cultivars
- 2012
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Ingår i: The Natural Products Journal. - Bentham : Bentham Science Publishers Ltd.. - 2210-3163 .- 2210-3155. ; 2:3, s. 205-211
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Tidskriftsartikel (refereegranskat)abstract
- Musa (AAB group) Thap Maeo is very productive and resistant to various banana diseases. However, quality attributes of this fruit were poorly investigated so far. The aim of this work was to establish a parallel between the sensory and volatile compound profile of this cultivar. A Quantitative Descriptive Analysis technique was used for sensory evaluation and the headspace volatile profile was analyzed by solid-phase microextraction and gas chromatography-mass spectrometry. Judges have described Thap Maeo with a moderate intensity of ripe banana aroma and flavor, which was confirmed by obtaining a poor volatile profile, with 14 compounds. 3-methybutyl butanoate and 3-methylbutanoate were the major compounds detected in the headspace, which could explain the perception of significant fruity flavors by the judges in the sensory tests.
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| 4. |
- Castro Alves, Victor, 1986-, et al.
(författare)
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Volatile Compounds Profile of Musa FHIA 02 : An Option to Counter Losses by Black Sigatoka
- 2012
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Ingår i: The Natural Products Journal. - Bentham : Bentham Science Publishers Ltd.. - 2210-3163 .- 2210-3155. ; 2:1, s. 55-60
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Tidskriftsartikel (refereegranskat)abstract
- In order to prevent the spread of banana diseases in Brazil, the government is expecting to replace the cultivation of sensitive varieties for other pest-resistant cultivars. But if the sensory properties are not taken into account, the breeding program may not succeed. The aim of this work was to compare the volatile compounds profile of Fhia 02 (AAAB group), resistant to black leaf streak disease, with its non resistant female genitor, Prata Ana (AAB group), one of the most commonly consumed cultivars in Brazil. Volatile compounds were isolated from the headspace by solid-phase microextraction and identified by gas chromatography-mass spectrometer. Fhia 02 presented a richer volatile profile, with high amount of esters with desirable ‘fruity’, ‘banana’, ‘herbal’ and ‘sweet’ odor notes, indicating high flavor quality with great potential for consumer acceptance.
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| 5. |
- dos Santos Garruti, Deborah, et al.
(författare)
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Volatile profile and sensory quality of new varieties of Capsicum chinense pepper
- 2013
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Ingår i: Ciência e tecnologia de alimentos. - Campinas : Sociedade Brasileira de Ciencia e Tecnologia de Alimentos. - 1678-457X. ; 33, s. 102-108
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this study was to compare the sensory quality and the volatile compound profile of new varieties of Capsicum chinense pepper (CNPH 4080 a strain of ‘Cumari-do-Pará’ and BRS Seriema) with a known commercial variety (Biquinho). Volatiles were isolated from the headspace of fresh fruit by SPME and identified by GC-MS. Pickled peppers were produced for sensory evaluation. Aroma descriptors were evaluated by Check-All-That-Apply (CATA) method, and the frequency data were submitted to Correspondence Analysis. Flavor acceptance was assessed by hedonic scale and analyzed by ANOVA. BRS Seriema showed the richest volatile profile, with 55 identified compounds, and up to 40% were compounds with sweet aroma notes. CNPH 4080 showed similar volatile profile to that of Biquinho pepper, but it had higher amounts of pepper-like and green-note compounds. The samples did not differ in terms of flavor acceptance, but they showed differences in aroma quality confirming the differences found in the volatile profiles. The C. chinense varieties developed by Embrapa proved to be more aromatic than Biquinho variety, and were well accepted by the judges.
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| 6. |
- Leite, Liz M., et al.
(författare)
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Anti-inflammatory Properties of Doxycycline and Minocycline in Experimental Models : An in Vivo and in Vitro Comparative Study
- 2011
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Ingår i: InflammoPharmacology. - : Springer. - 0925-4692 .- 1568-5608. ; 19:2, s. 99-110
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Tidskriftsartikel (refereegranskat)abstract
- Aims and methods: Minocycline (Mino) and doxycycline (Dox) are second generation tetracyclines known to present several other effects, which are independent from their antimicrobial activities. We studied in a comparative way the anti-inflammatory effects of Mino and Dox, on acute models of peripheral inflammation in rodents (formalin test and peritonitis in mice, and carrageenan-induced paw oedema in rats). Immunohistochemical assays for TNF-alpha and iNOS in rat paws of carrageenan-induced oedema were also carried out as well as in vitro assays for myeloperoxidase (MPO) and lactate dehydrogenase (LDH). Furthermore, antioxidant activities were evaluated by the DPPH assay. Results: In the formalin test although Mino and Dox (1, 5, 10 and 25 mg/kg, i.p.) inhibited the first phase, they acted predominantly on the second phase of the test, where inhibition of the licking time close to 80% were observed. Mino and Dox were very efficacious in reducing the carrageenan-induced paw oedema in rats (10, 25 and 50 mg/kg, i.p.) and carrageenan-induced leucocyte migration (1 and 5 mg/kg, i.p.) to mice peritoneal cavities. Besides, they also significantly inhibited MPO and LDH releases at doses ranging from 0.001 to 1 μg/ml. Thus, in general, the anti-inflammatory activity of Dox was higher as compared to that of Mino, although the radical scavenging activity of Mino was of a magnitude 10 times higher. Conclusions: Our data indicate that anti-inflammatory and antioxidant effects, involve the inhibition of iNOS and TNF-alpha, among other properties, and these encourage clinical studies of these compounds for new therapeutic applications, especially those were inflammation plays a role.
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| 7. |
- Picetti, Edoardo, et al.
(författare)
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Early management of adult traumatic spinal cord injury in patients with polytrauma : a consensus and clinical recommendations jointly developed by the World Society of Emergency Surgery (WSES) & the European Association of Neurosurgical Societies (EANS)
- 2024
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Ingår i: World Journal of Emergency Surgery. - : BioMed Central (BMC). - 1749-7922. ; 19
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Tidskriftsartikel (refereegranskat)abstract
- Background: The early management of polytrauma patients with traumatic spinal cord injury (tSCI) is a major challenge. Sparse data is available to provide optimal care in this scenario and worldwide variability in clinical practice has been documented in recent studies.Methods: A multidisciplinary consensus panel of physicians selected for their established clinical and scientific expertise in the acute management of tSCI polytrauma patients with different specializations was established. The World Society of Emergency Surgery (WSES) and the European Association of Neurosurgical Societies (EANS) endorsed the consensus, and a modified Delphi approach was adopted.Results: A total of 17 statements were proposed and discussed. A consensus was reached generating 17 recommendations (16 strong and 1 weak).Conclusions: This consensus provides practical recommendations to support a clinician's decision making in the management of tSCI polytrauma patients.
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| 8. |
- Pinto, Náyra O.F., et al.
(författare)
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Volatile Profile of New Improved Brazilian Capsicum chinense Peppers
- 2014. - 1
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Ingår i: Flavour Science. - Salt Lake City : Academic Press. - 9780123985491 ; , s. 643-647
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Bokkapitel (refereegranskat)abstract
- Brazilian geneticists are developing aromatic peppers that, besides their burning sensation, can also add flavor to foods. In this work, the volatile profiles of two new genotypes, CNPH 3931 and CNPH 4080, were compared to the profile of Orange Biquinho pepper, a very scented but not pungent Brazilian variety. Headspace volatile compounds were isolated by SPME and identified by GC-MS. The new genotypes presented very similar volatile profiles, with fewer compounds but higher volatile quantity when compared to Biquinho. They lack some important compounds to Biquinho’s aroma, but the presence of other esters can add a variety of desirable notes. These CNPH peppers were shown to be promising materials.
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| 9. |
- Ramos Do Prado, Samira B., et al.
(författare)
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Ingestion of non-digestible carbohydrates from plant-source foods and decreased risk of colorectal cancer : A review on the biological effects and the mechanisms of action
- 2019
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Ingår i: Frontiers in Nutrition. - : Frontiers Media S.A.. - 2296-861X. ; 6
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Forskningsöversikt (refereegranskat)abstract
- The hypothesis that links the increase in the intake of plant-source foods to a decrease in colorectal cancer (CRC) risk has almost 50 years. Nowadays, systematic reviews and meta-analysis of case-control and cohort studies confirmed the association between dietary patterns and CRC risk, in which the non-digestible carbohydrates (NDC) from plant-source foods are known to play beneficial effects. However, the mechanisms behind the physicochemical properties and biological effects induced by NDC on the decrease of CRC development and progression remain not fully understood. NDC from plant-source foods consist mainly of complex carbohydrates from plant cell wall including pectin and hemicellulose, which vary among foods in structure and in composition, therefore in both physicochemical properties and biological effects. In the present review, we highlighted the mechanisms and described the recent findings showing how these complex NDC from plant-source foods are related to a decrease in CRC risk through induction of both physicochemical effects in the gastrointestinal tract, fermentation-related effects, and direct effects resulting from the interaction between NDC and cellular components including toll-like receptors and galectin-3. Studies support that the definition of the structure-function relationship—especially regarding the fermentation-related effects of NDC, as well as the direct effects of these complex carbohydrates in cells—is crucial for understanding the possible NDC anticancer effects. The dietary recommendations for the intake of NDC are usually quantitative, describing a defined amount of intake per day. However, as NDC from plant-source foods can exert effects that vary widely according to the NDC structure, the dietary recommendations for the intake of NDC plant-source foods are expected to change from a quantitative to a qualitative perspective in the next few years, as occurred for lipid recommendations. Thus, further studies are necessary to define whether specific and well-characterized NDC from plant-source foods induce beneficial effects related to a decrease in CRC risk, thereby improving nutritional recommendations of healthy individuals and CRC patients.
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| 10. |
- Seeburger, P., et al.
(författare)
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Controlled mechanical stimuli reveal novel associations between basil metabolism and sensory quality
- 2022
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Ingår i: Food Chemistry. - : Elsevier. - 0308-8146 .- 1873-7072. ; 404:Pt A
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Tidskriftsartikel (refereegranskat)abstract
- There is an increasing interest in the use of automation in plant production settings. Here, we employed a robotic platform to induce controlled mechanical stimuli (CMS) aiming to improve basil quality. Semi-targeted UHPLC-qToF-MS analysis of organic acids, amino acids, phenolic acids, and phenylpropanoids revealed changes in basil secondary metabolism under CMS, which appear to be associated with changes in taste, as revealed by different means of sensory evaluation (overall liking, check-all-that-apply, and just-about-right analysis). Further network analysis combining metabolomics and sensory data revealed novel links between plant metabolism and sensory quality. Amino acids and organic acids including maleic acid were negatively associated with basil quality, while increased levels of secondary metabolites, particularly linalool glucoside, were associated with improved basil taste. In summary, by combining metabolomics and sensory analysis we reveal the potential of automated CMS on crop production, while also providing new associations between plant metabolism and sensory quality.
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