• Applied Chemistry for Engineering
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• v.23 no.3
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• pp.284-288
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• 2012

This work deals with the chemical characterization of glycine aqueous solution in $CO_2$ absorption. Three alkali elements were impregnated into the glycine in order to facilitate the formation of amino functionalities. The analysis by IR revealed the transformation of ammonium ions to the amino group. In addition, the NMR analysis showed that the substitution of metal cations to the chemical shift of hydrogen and carbon atoms in glycine; in order of lithium glycinate, sodium glycinate and potassium glycinate depending on the electro negativity. Meanwhile, the $CO_2$ absorption at room temperature was the highest in primary amine solution, but at the increasing temperature sodium glycinate could capture more $CO_2$ than that of the pure amine solution.

• Korean Journal of Food Science and Technology
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• v.51 no.2
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• pp.114-119
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• 2019

Seven antimicrobial agents known to be effective in inhibiting the growth of lactic acid bacteria were applied to ensure the microbial safety of low-salted squid and myungran jeotgal with 4-6% salinity. These agents reduced the salt content by 50% compared with the conventional Jeotgal. Lactic acid bacteria such as Lactobacillus sp., Streptococcus sp., and Pediococcus sp. were commonly found to account for 80% of microbial organisms, and yeast and fungi were observed in squid and myungran jeotgal, respectively. The total bacterial counts in squid and myungran jeotgal showed 94.20 and 90.87% reduction after the addition of 0.5% (w/w) glycine. The microbial counts in squid and myungran jeotgal decreased $10^1-10^2CFU/g$ when compared with the control after 21 days at $10^{\circ}C$. Glycine was found to be an effective commercial antimicrobial agent that can be used to control bacterial count in low-salted Jeotgal without affecting sensory qualities such as overall taste and flavor.

• Food Industry
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• s.14
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• pp.88-91
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• 1973

• Journal of the Korean Chemical Society
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• v.20 no.3
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• pp.229-235
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• 1976

Phenylacetic acid is chlorinated photochemically in carbon disulfide and carbon tetrachloride solvents to obtain ${\alpha}$-chlorophenylacetic acid in $43{\%}$ yield (after separation and purification). The amination of ${\alpha}$-chlorophenylacetic acid yielded the desired dl-phenylglycine in $16\sim27{\%}$ yield depending on the solvent used. Sensitized photophenylation of glycine is also attempted utilizing benzoylperoxide as a phenyl radical source in benzene or acetone solvent.

• Journal of Pharmaceutical Investigation
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• v.17 no.2
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• pp.79-88
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• 1987

In order to reduce gastric irritation of iron preparations, one prodrug, glycine complex of ferrous fumarate, was synthesized, identified, examined for physico-chemical properties and compared with ferrous fumarate, ferrous sulfate and ferroglycine sulfate. That novel ferroglycine fumarate (FGF) resulted in higher dissolution rate in water, artificial gastric and intestinal juice. The absorption rate constants $(K_a)$ in rat of FGF was greater and ulcerogenic dose on stomach was increased remarkably than those of iron parent materials and ferroglycine sulfate.

• Journal of Pharmaceutical Investigation
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• v.17 no.3
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• pp.101-110
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• 1987

In order to reduce gastric irritation in the stomach of iron preparations, ferroglycine fumarate (FGF) granules coated with hydroxyethylcellulose was made by matrix granulator, and the constrained optimization method, employing the Lagrange equation, was successfully applied to the manufacturing process design of controlled release tablets. The effects of stearic acid and dried corn starch on tablet hardness, friability, dissolution rate $t_{50%}$ and tablet volume were found to be very significant. In rabbit test, pharmacokinetic parameters $(K_a,\;C_{max}\;and\;AUC^{0-12})$ and urinary excretion rate $(K_e)$ of the controlled release FGF tablets were higher than those of controlled release ferroglycine sulfate tablets which were manufactured in the same optimal conditions. Controlled release FGF tablets were more stable than controlled release ferroglycine sulfate tablets in accelerated storage conditions.

• Proceedings of the Materials Research Society of Korea Conference
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• 1999.11a
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• pp.137-137
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• 1999

• Journal of the Korean Chemical Society
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• v.52 no.2
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• pp.207-211
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• 2008

• Proceedings of the KIEE Conference
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• 1999.07d
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• pp.1520-1522
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• 1999

저 전압용 형광체는 최근에 활발히 연구가 진행되고 있으며 가장 대표적인 형광체가 ZnO : Zn 녹색 형광체이다. ZnO : Zn 형광체는 자체발광형 형광체로써 ZnO을 환원분위기 하에서 열처리를 함으로써 얻을 수 있다. 본 연구에서는 자발착화 연소반응법(Glycine Nitrate Process)을 이용하여 ZnO : Zn 분말을 합성하고 형광특성 및 분말특성을 알아보았다. 출발물질로는 Zn Nitrate와 Glycine을 이용하였고 자발연소 반응이 발생하는데 적절한 글리신의 양을 확인하기 위해서 글리신과 양이온의 비를 변화시키며 ZnO를 합성하였다. 그리고 Zn Excess가 생겨난 양과 그에 따른 형광특성을 관찰하기 위해 $N_2$ 분위기에서 각기 $500^{\circ}C,\;750^{\circ}C,\;950^{\circ}C$의 온도에서 열처리를 행하였다. 제조된 ZnO 분말의 입자형태와 결정상태는 SEM과 XRD를 이용하여 분석하였고 TG-DTA를 측정하여 열처리 온도에 따른 질량감소(ZR excess)를 관찰하였다. 또 Particle size analyzer로 분말의 크기를 알아보았고 형광체로써의 발광특성을 살펴보기 위해 PL을 이용하여 발광피크를 관찰하였다.

• Journal of the Korean Ceramic Society
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• v.38 no.1
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• pp.45-51
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• 2001

고체산화물 연료전지의 삼상 계면의 길이를 증가시키기 위해 Glycine-Nitrate Process(GNP)를 이용하여 환원극 재료인 L $a_{0.5}$S $r_{0.5}$Mn $O_3$(LSM)과 전해질 재료인 C $e_{0.8}$G $d_{0.2}$ $O_{1.9}$(CGO)를 합성하였다. 적당한 합성조건을 찾기 위하여 글리신의 양을 달리하여 분말을 합성한 결과 LSM의 경우 글리신이 양이온 몰수의 2배일 때 perovskite상이 얻어졌으며 비표면적은 34$m^2$/g 이었다. 합성된 LSM과 CGO 분말을 50:50 wt%로 혼합하여 제작된 환원극을 screen-printing법으로 코팅한 후 각각 1200, 1300, 1350 및 140$0^{\circ}C$에서 4시간 동안 소결한 후 80$0^{\circ}C$에서 power density와 양극과전압 등을 측정한 결과 130$0^{\circ}C$에서 소결한 단위전지에서 최대 309 mW/$ extrm{cm}^2$의 power density를 얻을 수 있었다.다.