Ajinomoto Co., Ltd.

Kazuko Yuzawa

Yusuke Amino

Tadashi Takemoto

Ryoichiro Nakamura

Kenichi Mori

The present invention provides salt crystals of non-natural stereoisomer forms of monatin and to the use thereof.

Crystals of non-natural-type stereoisomer salt of monatin and use thereof

The present invention provides N-alkylaspartyl dipeptideester compounds and salts thereof, such as N-[N-[3-(3-hydroxy-4-methoxyphenyl)-3-methylbutyl]-L-&#x3b1;-aspartyl]-L-phenylalanine 1-methyl ester, which provide high degrees of sweetness in comparison to conventional products, compositions and products containing the novel aspartyl dipeptide ester compounds and method of producing the novel aspartyl dipeptide ester compounds.

N-alkylaspartyl dipeptide ester compounds

The present invention relates to a novel N-alkylaspartyl amide derivative, a salt form thereof, a sweetening agent containing the same and a sweetened food or drink containing the N-alkylaspartyl amide derivative as an effective ingredient.

N-alkylaspartyl amide derivative and sweetening agent

N-[N-[3-(3-methoxy-4-hydroxyphenyl)propyl]-L-&#x3b1;-aspartyl]-L-phenylalanine 1-methyl ester is prepared by a process comprising:

Method for producing Aspartame derivative, method for purifying the same, crystals thereof and uses of the same

Method for producing aspartame derivative, method for purifying the same, crystals thereof and uses of the same

Aspartyl dipeptide ester derivatives, such as a N-&lsqb;N-&lsqb;3-(3,4-dihydroxyphenyl)-3-methylbutyl&rsqb;-L-&agr;-aspartyl&rsqb;-L-phenylalanine 1-methyl ester, or salts thereof, having a high degree of sweetness compared to conventional sweeteners. These derivatives are excellent in sweetening potency and may be used as sweetener components in products such as foods and drinks. They may also be used as low calorie sweeteners and in methods of sweetening products. Foods and drinks comprising these derivatives as well as methods for their production.

Aspartyl dipeptide ester derivatives and sweeteners

The present invention relates to novel, aspartyl dipeptide ester derivatives and salts thereof, such as N-&lsqb;N-(3-(3-hydroxy-4-methoxyphenyl)propyl&rsqb;-L-&agr;-aspartyl&rsqb;-L-(&agr;-methyl)phenylalanine 1-methyl ester which provide high degrees of sweetness in comparison to conventional products, compositions and products containing the novel aspartyl dipeptide ester derivatives and method of producing the novel aspartyl dipeptide ester derivatives.

Low-calory sweeteners comprising novel aspartyl dipeptide ester derivatives and their salts have a sweetening potency of up to 35000 times that of sugar and include compounds such as N-&lsqb;N-&lsqb;3-(3-methyl-4-hydroxyphenyl)propyl&rsqb;-L-&agr;-aspartyl&rsqb;-L-phenylalanine 1-methyl ester and N-&lsqb;N-&lsqb;3-(3-hydroxy-4-methoxyphenyl)propyl&rsqb;-L-&agr;-aspartyl&rsqb;-L-phenylalanine 1-methyl ester.

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Kawasaki, Japan

Kazuko Yuzawa