产品货号：ZZK-K-GLUT

产品品名：L-谷氨酸检测试剂盒

英文品名：L-Glutamic Acid Assay Kit

规格型号：60 assays (manual) / 600 assays (microplate) / 700 assays (auto-analyser)

A simple, reliable, rapid and accurate method for the determination ofL-Gluta mate (MSG) in foodstuffs.

INTRODUCTION:

L-Glutamic acid (L-Gluta mate), one of the 20 common amino acids,

occurs naturally in foods such as cheese, milk, meat, fish, corn,

tomatoes, mushrooms, soybean and sugar beet. In its free form,

L-glutamic acid is the major flavour enhancing component of foods

with a meaty/savoury taste. The role played by L-glutamic acid in

the palatability of foods is exploited by either traditional cooking

methods that release free L-glutamic acid, or by supplementation

with monosodium Gluta mate (MSG). Excessive use of MSG as a

food additive (E621) in processed foods results in the symptoms of

“Chinese Restaurant Syndrome” (CRS), where palpitations, severe

headaches, nausea, wheezing and increased body temperature are

thought to result from the neuro-excitory properties of free

L-glutamic acid. Onset of CRS is fast, only 30-60 min after ingestion,

and symptoms generally subside after approximately 2-3 hours.

Around 15% of Americans are sensitive to MSG.

KITS:

Kits suitable for performing 60 assays in manual format (or 700 assays

in auto-analyser format or 600 assays in microplate format) are available

from Megazyme. The kits contain the full assay method plus:

Bottle 1: Buffer (35 mL, pH 8.6) plus sodium azide (0.02% w/v)

as a preservative.

Stable for 大于 2 years at 4°C.

Bottle 2: (x2) NAD+ plus INT.

Stable for 大于 2 years at 4°C.

Bottle 3: Diaphorase suspension (3.1 mL).

Stable for 大于 2 years at 4°C.

Bottle 4: Gluta mate dehydrogenase solution (3.1 mL).

Stable for 大于 2 years at -20°C.

Bottle 5: L-Glutamic acid standard solution

(5 mL, 0.10 mg/mL) in 0.02% (w/v) sodium azide.

Stable for 大于 2 years at 4°C.

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文章号：=2257JP2257