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9 rezultate
An evaluation of 4-s-methyl-2-keto-butyric Acid as an intermediate in the biosynthesis of ethylene.
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Stimulation of ethylene production by cauliflower (Brassica oleracea var. botrytis L.) tissue in buffer solution containing 4-S-methyl-2-keto-butyric acid is not due to activation of the natural in vivo system. Increased ethylene production derives from an extra-cellular ethylene-forming system,
Identification of key aroma-active compounds in sesame oil from microwaved seeds using E-nose and HS-SPME-GC×GC-TOF/MS.
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The study investigated the volatile compounds of sesame oil and the effects of microwave processing (0-8 min with 1-min intervals), mainly focusing on the integral flavor characteristics and individual aroma-active compounds. A total of 82 characteristic odors were identified using GC×GC-TOF/MS.
Effect of cysteine and cystine addition on sensory profile and potent odorants of extruded potato snacks.
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Aromas generated in extruded potato snacks without and with addition of 0.25, 0.5, and 1% (w/w) of flavor precursors, cysteine and cystine, were compared and evaluated by descriptive sensory profiling. The results showed that high addition of cysteine (0.5 and 1%) resulted in the formation of
Identification of Odor-Active Compounds Released from a Damaged Plant of the Asian Skunk Cabbage Symplocarpus renifolius.
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Symplocarpus renifolius (Asian skunk cabbage) is a perennial herb of the Araceae family. As its common name implies, this plant produces a strong garliclike irritant odor with a rotten note when the plant parts are crushed. To elucidate the odor characteristics, the volatile compounds released from
Chemical composition, aroma evaluation, and oxygen radical absorbance capacity of volatile oil extracted from Brassica rapa cv. "yukina" used in Japanese traditional food.
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The chemical composition of the volatile oil extracted from the aerial parts of Brassica rapa cv. "yukina" was analyzed using GC-MS, GC-PFPD, and GC-O. A total of 50 compounds were identified. The most prominent constituents were (E)-1,5-heptadiene (40.27%), 3-methyl-3-butenenitrile (25.97%) and
Identification of the cooked off-flavor in heat-sterilized lychee (Litchi chinensis Sonn.) juice by means of molecular sensory science.
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The main contributors to the cooked off-flavor in heat-sterilized lychee juice (HLJ) were studied by means of molecular sensory science. The HLJ which elicited cooked cabbage/potato and onion/garlic off-flavor was compared with fresh lychee juice (FLJ) having desired sensory attributes via chemical
Comparison of three lychee cultivar odor profiles using gas chromatography-olfactometry and gas chromatography-sulfur detection.
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Odor volatiles in three major lychee cultivars (Mauritius, Brewster, and Hak Ip) were examined using gas chromatography-olfactometry, gas chromatography-mass spectrometry, and gas chromatography-pulsed flame photometric detection. Fifty-nine odor-active compounds were observed including 11 peaks,
Compositional changes of the floral scent volatile emissions from Asian skunk cabbage (Symplocarpus renifolius, Araceae) over flowering sex phases.
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BACKGROUND
Flowering of the Asian skunk cabbage (Symplocarpus renifolius, Araceae) shows a sequential expression of female, bisexual and male sex phases. The protogynous thermogenic inflorescence has unpleasant odours, but the contributing chemical composition is poorly understood.
OBJECTIVE
To
Key aroma compounds formation during preparation of pumpernickel bread.
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Application of gas chromatography - olfactometry analysis (GCO) to pumpernickel bread and its intermediate products obtained during fermentative process allowed to recognize 32 key aroma compounds with specific odor notes. Subsequent quantitation using stable isotope dilution assay analysis (SIDA)
Cea mai completă bază de date cu plante medicinale susținută de știință
- Funcționează în 55 de limbi
- Cure pe bază de plante susținute de știință
- Recunoașterea ierburilor după imagine
- Harta GPS interactivă - etichetați ierburile în locație (în curând)
- Citiți publicațiile științifice legate de căutarea dvs.
- Căutați plante medicinale după efectele lor
- Organizați-vă interesele și rămâneți la curent cu noutățile de cercetare, studiile clinice și brevetele
Tastați un simptom sau o boală și citiți despre plante care ar putea ajuta, tastați o plantă și vedeți boli și simptome împotriva cărora este folosit.
* Toate informațiile se bazează pe cercetări științifice publicate
