Thaumatin
53850-34-3CC(=O)Nc1ccc(S(=O)(=O)N2CCN(C3CCCCCC3)CC2)cc1IVPOQXWRUMMORK-UHFFFAOYSA-NThaumatin b, recombinant is a sulfonamide.
53850-34-3CHEBI:175005STRONGLY CATIONIC; ISOELECTRIC POINT APPROX 11.7; ABOUT 750-1600 TIMES SWEETER THAN SUCROSE ON A WT BASIS, 30,000-100,000 TIMES ON A MOLAR BASIS; THE PROTEIN LOSES SWEETNESS ON HEATING, ON SPLITTING OF DISULFIDE BRIDGES & ALSO AT PH LESS THAN 2.5; MOL WT OF EACH POLYPEPTIDE IS ABOUT 21,000 (DETERMINED FROM ULTRACENTRIFUGAL DATA); TASTE THRESHOLD: NEAR 1x10-4%
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
This chemical does not meet GHS hazard criteria for 51.3% (77 of 150) of all reports.
Danger
H334 (46.7%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]
P233, P260, P261, P271, P284, P304+P340, P319, P342+P316, P403, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 150 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Chemical: Proteins, thaumatins
Regulation (EC) No 1333/2008 (amended)
Proteins, thaumatins: Does not have an individual approval but may be used under an appropriate group standard
Prick testing of laboratory personnel who had been intermittently exposed by inhalation to thaumatin for periods up to 7 yr showed that 9.3% (13/140) responded positively to commercial thaumatin. None of the subjects who gave a positive skin reaction to commercial thaumatin responded to the plant components remaining after removal of the specific sweet thaumatin proteins. Challenge tests in man did not demonstrate any oral sensitization.
COMPRISED OF TWO ELECTROPHORETIC SPECIES, THAUMATINS I AND II, ONE OF WHICH APPEARS TO BE A PARTIALLY DEAMINATED FORM OF THE OTHER. ... THE PROTEIN CONSISTS OF A SINGLE POLYPEPTIDE CHAIN OF 207 RESIDUES; FIVE SETS OF TRIPEPTIDES ARE IDENTICAL WITH TRIPEPTIDES IN MONELLIN.
Thaumatin was one of the sweetening agents studied & found to be low in cariogenic action. No deleterious effect of its use has been found.
Various maturation forms of the plant protein thaumatin were expressed in yeast, using a promoter fragment of the glyceraldehyde-3P-dehydrogenase (GAPDH) gene. Nucleotide sequence analysis of 843 nucleotide GAPDH promoter fragment revealed a characteristic structure with 2 regions of dyad symmetry containing translational starts of GAPDH and a putative 38 amino acid peptide.
用途甘味料研究用。
説明Thaumatin is a mixture of intensely sweet-tasting proteins extracted from the fruit of a West African plant, Thaumatococcus daniellii. The two major sweet-tasting proteins, thaumatin I and II (TI and TIl), were isolated by Van der WeI and his group at Unilever in 1972. Thaumatin is marketed in the UK by Tate & Lyle pIc as Talln, although the fruit of the plant has been used for centuries by the West Africans as a source of sweetness. It is also sold in Japan. Because of problems with stability, taste profile and compatibility, thaumatin is used primarily as a flavour enhancer, at levels below the sweet-taste threshold.
現在のフィルター条件では反応記録がありません。
読み込み中…
化学的特性Thaumatin is a mixture of sweet proteins occurring in the arils of the fruits of the African plant Thaumatococcus daniellii. Thaumatins I and II are the main components, but four more thaumatin molecules are known. The proteins may be extracted with water. Thaumatin is about 2,000–2,500 times sweeter than sucrose but has a lingering sweetness. In addition to its sweet taste, it has flavor-enhancing properties. It is freely soluble in water and of fairly good stability. In Europe, thaumatin is approved as E 957 for use as a sweetener. It is also approved in a variety of other countries, but in the United States, GRAS as a flavor enhancer only.
Thaumatin was readily digested prior to absorption in rats and no adverse effects resulted from its continuous admin to rats & dogs at dietary concn of 0, 0.3, 1.0 and 3.0% for 13 wk. It was not teratogenic. The lack of mutagenic potential was confirmed in bacterial mutagenic assays with Salmonella typhimurium TA1535, TA1537, TA98 & TA100 and Escherichia coli WP2, at levels of 0.05-50 mg/plate. In rats, thaumatin was a weak sensitizer, comparable with egg albumen when admin systemically, but inactive when admin orally.
天然物の起源Reported found in the fruits of Thaumatococcus daniellii.
製造方法Thaumatin I and II proteins can be produced recombinantly in a wide range of hosts, including microorganisms such as bacteria and yeast, and in GM plants to enhance the organoleptic properties.
Thaumatin is a naturally occurring intense sweetener isolated from the fruit of the African plant Thaumatococcus daniellii (Benth). Commercially, thaumatin is produced by aqueous extraction under reduced pH conditions followed by other physical processes such as reverse osmosis.