Klidel Fae Rellin - Academia.edu (original) (raw)
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Ateneo de Manila University
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Papers by Klidel Fae Rellin
Philippine garlic (Allium sativum L.) is arguably known to pack flavor and aroma in smaller bulbs... more Philippine garlic (Allium sativum L.) is arguably known to pack flavor and aroma in smaller bulbs compared to imported varieties saturating the local market. In this study, ethanolic extracts of Philippine garlic cultivars were profiled using ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-QTOF). γ-Glu dipeptides, oligosaccharides and lipids were determined in Philippine garlic cultivars through bioinformatics analysis in GNPS Molecular Networking Platform and fragmentation analysis. Multivariate statistical analysis using XCMS Online showed the abundance of γ-Glu allyl cysteine in Batanes-sourced garlic while γ-Glu propenyl cysteine, γ-Glu methyl cysteine, and alliin are enriched in the Ilocos cultivar. Principal component analysis showed that the γ-Glu dipeptides found in local garlic influenced their distinct separation across PC1 from imported varieties. This presence of high levels of γ-Glu dipeptides and probiotic oligosaccharide...
Calabash fruit (Crescentia cujete L.) juice has gained traction in Southern Philippines for its m... more Calabash fruit (Crescentia cujete L.) juice has gained traction in Southern Philippines for its miraculous effect against stroke, diabetes, and cancer. Metabolite profile of local C. cujete fruit pulp and the commercial fruit juice were established using gas chromatography mass spectrometry (GC-MS) and ultra-high perfromance liquid chromatography high-resolution mass spectrometry (UPLC-HRMS). Putative hits to the NIST Mass Spectral Library included methyl salicylate, (+)-δ-cadinene, benzene and its derivatives such as toluene and o-xylene. Toluene and o-xylene are known air pollutants. Results indicated that the fruit has the potential to bioaccumulate small organic molecules. Volatile organic compounds detected in the fruit pulp were absent from the processed commercial juice. Other benzenoid compounds – thiazole and (+)-δ-cadinene, which are important biosynthetic precursors – were identified from the juice sample. Molecular networking analysis of the tandem MS data of the ethanol...
Molecules, 2021
Underutilized biowaste materials are investigated for their potential as sustainable textile colo... more Underutilized biowaste materials are investigated for their potential as sustainable textile colorants through an approach based on mass spectrometry, bioinformatics, and chemometrics. In this study, colorful decoctions were prepared from the outer bark of Eucalyptus deglupta and fruit peels of Syzygium samarangense, Syzygium malaccense, Diospyros discolor, and Dillenia philippinensis. Textile dyeing was performed along with liquid chromatography–mass spectrometry (LC–MS)-based untargeted metabolomics to determine the small molecules responsible for the observed colors. Global Natural Products Social Molecular Networking (GNPS) guided the annotation of black-producing proanthocyanidins in D. philippinensis and E. deglupta through complexation with FeSO4 mordant. Flavonoids from the yellow-colored D. philippinensis extracts were found to be similar to those in Terminalia catappa, a known traditional dye source. A higher intensity of epicatechin in E. deglupta produced a red-brown col...
Philippine garlic (Allium sativum L.) is arguably known to pack flavor and aroma in smaller bulbs... more Philippine garlic (Allium sativum L.) is arguably known to pack flavor and aroma in smaller bulbs compared to imported varieties saturating the local market. In this study, ethanolic extracts of Philippine garlic cultivars were profiled using ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-QTOF). γ-Glu dipeptides, oligosaccharides and lipids were determined in Philippine garlic cultivars through bioinformatics analysis in GNPS Molecular Networking Platform and fragmentation analysis. Multivariate statistical analysis using XCMS Online showed the abundance of γ-Glu allyl cysteine in Batanes-sourced garlic while γ-Glu propenyl cysteine, γ-Glu methyl cysteine, and alliin are enriched in the Ilocos cultivar. Principal component analysis showed that the γ-Glu dipeptides found in local garlic influenced their distinct separation across PC1 from imported varieties. This presence of high levels of γ-Glu dipeptides and probiotic oligosaccharide...
Calabash fruit (Crescentia cujete L.) juice has gained traction in Southern Philippines for its m... more Calabash fruit (Crescentia cujete L.) juice has gained traction in Southern Philippines for its miraculous effect against stroke, diabetes, and cancer. Metabolite profile of local C. cujete fruit pulp and the commercial fruit juice were established using gas chromatography mass spectrometry (GC-MS) and ultra-high perfromance liquid chromatography high-resolution mass spectrometry (UPLC-HRMS). Putative hits to the NIST Mass Spectral Library included methyl salicylate, (+)-δ-cadinene, benzene and its derivatives such as toluene and o-xylene. Toluene and o-xylene are known air pollutants. Results indicated that the fruit has the potential to bioaccumulate small organic molecules. Volatile organic compounds detected in the fruit pulp were absent from the processed commercial juice. Other benzenoid compounds – thiazole and (+)-δ-cadinene, which are important biosynthetic precursors – were identified from the juice sample. Molecular networking analysis of the tandem MS data of the ethanol...
Molecules, 2021
Underutilized biowaste materials are investigated for their potential as sustainable textile colo... more Underutilized biowaste materials are investigated for their potential as sustainable textile colorants through an approach based on mass spectrometry, bioinformatics, and chemometrics. In this study, colorful decoctions were prepared from the outer bark of Eucalyptus deglupta and fruit peels of Syzygium samarangense, Syzygium malaccense, Diospyros discolor, and Dillenia philippinensis. Textile dyeing was performed along with liquid chromatography–mass spectrometry (LC–MS)-based untargeted metabolomics to determine the small molecules responsible for the observed colors. Global Natural Products Social Molecular Networking (GNPS) guided the annotation of black-producing proanthocyanidins in D. philippinensis and E. deglupta through complexation with FeSO4 mordant. Flavonoids from the yellow-colored D. philippinensis extracts were found to be similar to those in Terminalia catappa, a known traditional dye source. A higher intensity of epicatechin in E. deglupta produced a red-brown col...