Aroma volatiles during non-climacteric melon ripening and potential association with flesh firmness

Escudero, Ana; Zarid, Mohamed; Bueso, María C.; Fernández-Trujillo, J.P.

doi:10.17660/actahortic.2018.1194.52

Cited by 5 publications

(10 citation statements)

References 10 publications

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“…From a physiological point of view, the higher the relative acetate ester concentration in flesh tissue, the more senescent the PS melon flesh [37]. This was the case with some samples when area counts were observed, but, in the percentage of total area counts, the outliers apparently disappeared.…”

Section: Discussionmentioning

confidence: 86%

“…Overall, variables in the percentages of total area counts, such as total level of acids, terpenes, or alcohols, increased during PS melon fruit ripening, while aldehydes decreased, although non-acetate esters, alcohols and aldehydes also slightly increased close to senescence [34,37]. The detection of the excess of some of these compounds within a sample of different fruit of one parental may help to provide more reliable control data for QTL mapping of this type of compound at harvest using near-isogenic lines [4,5].…”

Section: Discussionmentioning

confidence: 93%

“…A few esters can develop with certain abundance in some non-climacteric cultivars synthetized by ethylene-independent pathways, [40], particularly in certain seasons [6]. The high level of these esters dramatically reduced the proportion of the aldehydes typical of non-climacteric cultivars and accessions based on total area counts [8,9,37].…”

Section: Discussionmentioning

confidence: 99%

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Methodology to Remove Strong Outliers of Non-Climacteric Melon Fruit Aroma at Harvest Obtained by HS-SPME GC-MS Analysis

2018

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A methodology for making consistent studies of outliers of non-climacteric melon volatile organic compounds at harvest is reported. The juice was squeezed from the fruit of the 'Piel de sapo' cultivar harvested during two consecutive seasons and the aroma volatiles were extracted by headspace solid phase microextraction and measured by gas chromatography coupled to mass-spectrometry. A deconvolution analysis was performed to obtain volatile organic compounds. For multivariate the reliable identification of outliers, compound classes were studied as a percentage of total area counts of the melon compounds identified in the chromatogram by principal component analysis and partial least-squares discriminant analysis, and then verified by correlation analysis, box-whisker plot, and formal tests for univariate outliers. Principal component analysis was the key methodology for selecting outliers in variables that mostly did not follow a normal distribution. The presence of an excess in terms of relative percentage of area and the diversity of minor compounds such as alcohols, terpenes, acids, among others, are usually a sign of anomalous data that can be considered outliers in the aroma of this non-climacteric cultivar. This multivariate approach removed outliers, but kept the variability of aroma among the samples of every cultivar.

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Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 93%

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Methodology to Remove Strong Outliers of Non-Climacteric Melon Fruit Aroma at Harvest Obtained by HS-SPME GC-MS Analysis

2018

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“…From a physiological point of view, the higher the relative acetate ester concentration in flesh tissue, the more senescent the PS melon flesh (Escudero et al, 2018). This was the case with some samples when area counts were observed, but, in the percentage of total area counts, the outliers apparently disappeared.…”

mentioning

confidence: 86%

“…A few esters can develop with certain abundance in some non-climacteric cultivars synthetized by ethylene-independent pathways, (Oh et al, 2011), particularly in certain seasons (Dos-Santos et al, 2013). The high level of these esters dramatically reduced the proportion of the aldehydes typical of nonclimacteric cultivars and accessions based on total area counts (Verzera et al, 2011;Escudero et al, 2018).…”

mentioning

confidence: 99%

Association among aroma volatiles and other traits in one near-isogenic line with firm flesh texture

Zarid¹

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First and foremost, I would like to thank Allah Almighty for giving me the strength, knowledge, ability and opportunity to undertake these research studies. I would like to give special thanks to the dedication of my supervisor in the development of this PhD Thesis, Prof. Dr. Juan Pablo Fernández Trujillo for allowing me to complete the PhD Thesis under his guidance and support, as well as for the wisdom and counsel he has conveyed to me, also for the trust he has placed in me and my work, for his optimism, and for his ability to guide my ideas, not only in the development of this PhD Thesis but also in my development as a researcher.

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Expresión génica y producción de volátiles durante la maduración del melón

Mohamed,

C.,

et al.

Proceedings of the 6th Workshop on Agri-Food Research. WiA

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Transcriptome sequencing was performed in order to analyze the genes associated to volatile synthesis expressed during ripening and to understand the molecular mechanisms that differentiate a melon Near-isogenic Line (NIL) SC10-2 and its parental Piel de Sapo (PS). CmLOX18 gene (Similar to Lipoxygenase 18) was differentially expressed in the NIL SC10-2 compared with PS associated with the aroma volatile compound hexanal as a target compound of the non-climacteric ripening. The expression of CmACO1 (1aminocyclopropane-1-carboxylate oxidase 1) gene associated with ethylene biosynthesis did not change during ripening. The introgression in LG X was associated with the differential hexanal production of the NIL and PS. An eQTL located in LG X is probably controlling the production of aroma volatiles due to CmLOX18 in LG I.

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Aroma volatiles during non-climacteric melon ripening and potential association with flesh firmness

Cited by 5 publications

References 10 publications

Methodology to Remove Strong Outliers of Non-Climacteric Melon Fruit Aroma at Harvest Obtained by HS-SPME GC-MS Analysis

Methodology to Remove Strong Outliers of Non-Climacteric Melon Fruit Aroma at Harvest Obtained by HS-SPME GC-MS Analysis

Association among aroma volatiles and other traits in one near-isogenic line with firm flesh texture

Expresión génica y producción de volátiles durante la maduración del melón

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