A5010811646- Essential Oils and Antimicrobial Activity
- Phytochemicals and Antioxidant Activities
- Biochemical and biochemical processes
- Plant biochemistry and biosynthesis
- Allelopathy and phytotoxic interactions
- Piperaceae Chemical and Biological Studies
- Biochemical Analysis and Sensing Techniques
- Bee Products Chemical Analysis
- Olfactory and Sensory Function Studies
- Weed Control and Herbicide Applications
- Traditional and Medicinal Uses of Annonaceae
- Natural product bioactivities and synthesis
- Cultural Heritage Materials Analysis
- Wood and Agarwood Research
- Synthesis of Indole Derivatives
- Probiotics and Fermented Foods
- Plant Parasitism and Resistance
- Fungal Biology and Applications
- Cannabis and Cannabinoid Research
- Microwave-Assisted Synthesis and Applications
- Ion Channels and Receptors
- Psychedelics and Drug Studies
- Quinazolinone synthesis and applications
- Advanced Chemical Sensor Technologies
- Bioactive natural compounds
Dibrugarh University
2025
North East Institute of Science and Technology
2019-2024
Academy of Scientific and Innovative Research
2021-2024
The bioflavors are of high demand in food and beverage industries. current study identified reductive processes mediated by mushroom species to alter the aroma aldehyde-rich essential oils submerged culture. Neofomitella polyzonata, a polypore mushroom, reduced citronellal citral citronella oil into corresponding alcohols that altered aroma, creating new bioflavor. screening with 43 aldehydes showed its broad substrate scope within aromatic linear aldehydes, yet influenced electronic steric...
An environmentally benign protocol has been developed for the synthesis of two biologically important N-heterocycles i.e. 2,3-dihydroquinazolin-4(1H)-ones and NH-1,2,3-triazoles. These N-heterocyclic compounds are synthesized by readily available inexpensive LiClO4 in ethylene glycol (EG) PEG-400 with good to excellent product yield providing an benchmark rapid these heterocycles under operational simplicity. Sc-XRD one products gives structural information DFT calculations provide on...
Plai or cassumunar ginger (Zingiber montanum), mainly distributed in tropical Asia, is an essential oil-bearing rhizomatous crop belonging to the Zingiberaceae family. Rhizomes and oil of this herb are used culinary as flavoring agents, traditional medicines, aromatherapy. In study, effect different postharvest drying methods (air-, oven-drying at 40 60 °C, sun-, microwave-, freeze-drying) its sliced rhizome on yield, composition, sensory quality was investigated. The major key odorants...
Spiny coriander (Eryngium foetidum L.) is a cilantro-flavoured aromatic oil-bearing herb and traditional food flavouring agent. In this study, gas chromatography-mass spectrometry technique was developed in conjunction with cluster analysis for its quality control chemotaxonomic differentiation common coriander. distinguished by high ratio of fatty aldehydes versus alcohols (378.5:1.0) trans-alkenals alkanals (16.3:1.0) the essential oil. A systematic investigation on ontogenetic variability...
Abstract Introduction Proton ( 1 H) nuclear magnetic resonance (NMR) spectroscopy based analytical method for the quantification of capsaicin (major pungent principle chili) has certain advantages including short data acquisition time and better structural authentication. Earlier NMR methods are associated with either bottlenecks such as low or lack information on sensitivity scope total capsaicinoid. Objective To develop a sensitive H quantitative (qNMR) technique capsaicinoid in dry chili...
Abstract Betel leaf or ‘Paan’ ( Piper betle ) is an integral component of the addictive chewing stimulant ‘betel quid’ which traditionally consumed by a large population in Asian countries. essential oil also heavily used flavour industries. Often, it constitutes carcinogenic and genotoxic phenylpropanoids. High incidence oral carcinogenesis this part world has been linked to betel quid as well Paan. In study, betleoides C. DC . (wild Paan) was identified edible plant source from north‐east...
Abstract BACKGROUND Many essential oils and their constituent volatile organic compounds are known to be phytotoxic potential bioherbicides. This study aims investigate the phytotoxicity of propenylbenzene‐rich identify active molecule(s) therein. RESULTS Five commercially available were screened, which betel ( Piper betle L.) oil was identified as a potent natural phytotoxin. It dose‐dependently inhibited wheatgrass Triticum aestivum ) seed germination growth in water agar medium with half...
Dihydrocarvone, possessing four stereoisomers is an important flavour and chiral building block in chemical synthesis. Ascomycetes are well known for the selective bioreduction of carvone to dihydrocarvone. Often, these fungi produce mycotoxins which may contaminate biocatalytic product. Herein, Ganoderma sessile, a polypore mushroom, selectively reduced S-(+)-carvone cis-(-)-dihydrocarvone (DHC) its submerged culture. In optimised condition (0.75 g/L, 18 h, pH 3-5, 30 °C 150 rpm), 82.7%...
AbstractAbstractThe high-value agarwood oil, largely used in perfumery is generally graded by the traditional method of sensorial assessment. The compositional complexity and variation made its quality control challenging. Besides, non-volatile contaminants adulterants are bottlenecks gas-chromatographic detection. Herein, a HPTLC based technique was developed for assessment oil from Northeast India. A 'marker band' (anisylacetone oxygenated sesquiterpene rich) on profile, containing major...
Citronella oil, extracted from