Profiling of passion fruit volatiles: An effective tool to discriminate between species and varieties

Porto-Figueira, Priscilla; Freitas, Ana Isabel; Cruz, Catarina J.; Figueira, José A.; Câmara, José S.

doi:10.1016/j.foodres.2015.09.007

Cited by 48 publications

(21 citation statements)

References 39 publications

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“…In recent years, HS-SPME/GC-MS strategy has been successfully applied in the characterization of the volatile profile of new fruits [ 10 ]. Furthermore, the use of multivariate statistical methods to process the volatomic data, allowed the discrimination between different cultivars, varieties, and species and even between different maturation stages of the different fruits [ 9 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Tangerines Cultivated on Madeira Island—A High Throughput Natural Source of Bioactive Compounds

Figueira

Porto-Figueira

Câmara

2020

Foods

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Tangerines (Citrus reticulata) are popular fruits worldwide, being rich in many bioactive metabolites. The setubalense variety cultivated on Madeira Island has an intense aroma easily distinguishable from other tangerines, being traditionally used to enrich several foods and beverages. Nonetheless, setubalense volatile composition has never been characterized, and we aimed to unveil the bioactive potential of peels and juices of setubalense tangerines and compare them with the murcott variety grown in Portugal mainland. Using headspace solid-phase microextraction coupled to gas chromatography mass spectrometry (HS-SPME/GC-MS), we identified a total of 128 volatile organic metabolites (VOMs) in the juice and peels, with d-limonene, γ-terpinene, β-myrcene, α- and β-pinene, o-cymene, and terpinolene, the most dominant in both cultivars. In contrast, setubalense juices are richer in terpenes, many of them associated with health protection. Discriminant analysis revealed a pool of VOMs, including β-caryophyllene and E-ocimene, with bioactive properties able to differentiate among tangerines according to variety and sample type (peel vs. juice). This is the first report on the volatile composition of setubalense tangerines grown on Madeira Island revealing that its pungent aroma is constituted by secondary metabolites with specific aroma notes and health properties. This is strong evidence of the higher nutraceutical value of such fruit for the human diet.

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Section: Introductionmentioning

confidence: 99%

Tangerines Cultivated on Madeira Island—A High Throughput Natural Source of Bioactive Compounds

Figueira

Porto-Figueira

Câmara

2020

Foods

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“…Besides, some of the extensively used kernel functions including linear, sigmoid, polynomial and radial basis function (RBF) can be carried out to construct models. Among these, the RBF is popular in many problems [ 65 , 66 ] and was chosen in our study. For RBF kernel function, two parameters are kernel width (γ) and regularization parameter (C), and the classification result of the given data are affected by the pairs of parameters.…”

Section: Methodsmentioning

confidence: 99%

Chemometric Analysis of the Volatile Compounds Generated by Aspergillus carbonarius Strains Isolated from Grapes and Dried Vine Fruits

Zhan

Marriott

et al. 2018

Toxins

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Ochratoxin A (OTA) contamination in grape production is an important problem worldwide. Microbial volatile organic compounds (MVOCs) have been demonstrated as useful tools to identify different toxigenic strains. In this study, Aspergillus carbonarius strains were classified into two groups, moderate toxigenic strains (MT) and high toxigenic strains (HT), according to OTA-forming ability. The MVOCs were analyzed by GC-MS and the data processing was based on untargeted profiling using XCMS Online software. Orthogonal projection to latent structures discriminant analysis (OPLS-DA) was performed using extract ion chromatogram GC-MS datasets. For contrast, quantitative analysis was also performed. Results demonstrated that the performance of the OPLS-DA model of untargeted profiling was better than the quantitative method. Potential markers were successfully discovered by variable importance on projection (VIP) and t-test. (E)-2-octen-1-ol, octanal, 1-octen-3-one, styrene, limonene, methyl-2-phenylacetate and 3 unknown compounds were selected as potential markers for the MT group. Cuparene, (Z)-thujopsene, methyl octanoate and 1 unknown compound were identified as potential markers for the HT groups. Finally, the selected markers were used to construct a supported vector machine classification (SVM-C) model to check classification ability. The models showed good performance with the accuracy of cross-validation and test prediction of 87.93% and 92.00%, respectively.

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“…Passiflora genus (Passifloraceae) has approximately 500 species. Its potential for the identification and application of bioactive pharmaceutical-interest molecules has been exploited extensively in the last decades (Figueira, Freitas, Cruz, Figueira, & Câmara, 2015;Corrêa et al, 2016). Studies with endophytic microbiota of this genus of plant have also been reported successfully (Seetharaman et al, 2017;Rathnayake, Kumar, Jayasinghe, Araya, & Fujimoto, 2017).…”

Section: Introductionmentioning

confidence: 99%

Bioprospection and molecular phylogeny of culturable endophytic fungi associated with yellow passion fruit

Oliveira

Polli

Polônio

et al. 2020

Acta Sci. Biol. Sci.

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Endophytic microorganisms live inside the plants without causing any damage to their hosts. In the agricultural field, these endophytes might be a strategy of biological control for phytopathogens. We aimed to isolate endophytic fungi from yellow passion fruit (Passiflora edulis) leaves, evaluating its biocontrol capacity by in vitro antagonism against phytopathogen Colletotrichum sp. CNPU378. We also carried out greenhouse experiments in bean seedlings. A high colonization frequency was obtained (89%), and the molecular identification based on DNA sequencing attested Colletotrichum as the most frequent genus and minor occurrence of Curvularia endophytes. The endophytes tested showed different types of competitive interactions in in vitro antagonism inhibition rate ranging from 28.8 to 48.8%. There were 10 promising antagonists tested for their antagonist activity of crude extracts of secondary metabolites, in which strain PE-36 (20.8%) stood out among the other strains evaluated. In the greenhouse assay, plants inoculated only with endophyte Colletotrichum sp. PE-36 was symptomless and suggest that the endophyte strengthened the growth promotion in common bean plants, especially in the root length and number of leaves when compared to control plants and other treatments. Despite many fungi of Colletotrichum genus being described as causative agents of anthracnose, in this study, the plant sampled was colonized predominantly by Colletotrichum endophytes living in asymptomatic relationship. By the way, we come across a Colletotrichum sp. endophyte able to antagonize a Colletotrichum sp. pathogen.

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Profiling of passion fruit volatiles: An effective tool to discriminate between species and varieties

Cited by 48 publications

References 39 publications

Tangerines Cultivated on Madeira Island—A High Throughput Natural Source of Bioactive Compounds

Tangerines Cultivated on Madeira Island—A High Throughput Natural Source of Bioactive Compounds

Chemometric Analysis of the Volatile Compounds Generated by Aspergillus carbonarius Strains Isolated from Grapes and Dried Vine Fruits

Bioprospection and molecular phylogeny of culturable endophytic fungi associated with yellow passion fruit

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