Gallic Acid

Publication Title: 
Poultry Science

Several natural phenolic materials were analyzed for gallic acid and were further characterized for dialyzability and flavonoid content. These materials were added to a diet and fed to broiler strain chicks for 4 weeks. The depression in growth caused by these phenolic materials was compared with that of tannic acid on a gallic acid equivalency basis.

Author(s): 
Kratzer, F. H.
Singleton, V. L.
Kadirvel, R.
Rayudu, G. V.
Publication Title: 
Biological & Pharmaceutical Bulletin

Examination of the EtOH extract of the fruiting bodies of Terminalia chebula RETZ. led to the isolation of two potent antimicrobial substances against even methicillin-resistant strains of Staphylococcus aureus. On the basis of spectroscopic evidence, the two isolates have been identified as gallic acid and its ethyl ester.

Author(s): 
Sato, Y.
Oketani, H.
Singyouchi, K.
Ohtsubo, T.
Kihara, M.
Shibata, H.
Higuti, T.
Publication Title: 
Biological & Pharmaceutical Bulletin

Gallic acid (GA) and chebulagic acid (CA) were isolated from the extract of a herbal medicine, kashi (myrobalans: the fruit of Terminalia chebula) as active principles that blocked the cytotoxic T lymphocyte (CTL)-mediated cytotoxicity. GA and CA inhibited the killing activity of CD8+ CTL clone at IC50 values of 30 microM and 50 microM, respectively. Granule exocytosis in response to anti-CD3 stimulation was also blocked by GA and CA at the equivalent concentrations.

Author(s): 
Hamada, S.
Kataoka, T.
Woo, J. T.
Yamada, A.
Yoshida, T.
Nishimura, T.
Otake, N.
Nagai, K.
Publication Title: 
Planta Medica

The bioassay-directed isolation of Terminalia chebula fruits afforded four human immunodeficiency virus type 1 (HIV-1) integrase inhibitors, gallic acid ( 1) and three galloyl glucoses ( 2 - 4). In addition, four flavonol glycoside gallates ( 5 - 8) from Euphorbia pekinensis containing the galloyl moiety also showed the inhibitory activity at a level comparable to those of 2 - 4.

Author(s): 
Ahn, Mi-Jeong
Kim, Chul Young
Lee, Ji Suk
Kim, Tae Gyun
Kim, Seung Hee
Lee, Chong-Kyo
Lee, Bo-Bin
Shin, Cha-Gyun
Huh, Hoon
Kim, Jinwoong
Publication Title: 
Journal of Basic Microbiology

Modified solid-state fermentation (MSSF) of tannin-rich substrates for production of tannase and gallic acid was carried out using two fungal cultures, Rhizopus oryzae (RO IIT RB-13, NRRL 21498) and Aspergillus foetidus (GMRB013 MTCC 3557). The tannin rich substrates included powdered fruits of Terminalia chebula and Caesalpinia digyna pod cover powder. The different environmental parameters for the maximum production of tannase and gallic acid were optimized through media engineering.

Author(s): 
Mukherjee, Gargi
Banerjee, Rintu
Publication Title: 
Drugs Under Experimental and Clinical Research

Allergic rhinitis, a frequently occurring immunological disorder affecting men, women and children worldwide, is a state of hypersensitivity that occurs when the body overreacts to a substance such as pollen, mold, mites or dust. Allergic rhinitis exerts inflammatory response and irritation of the nasal mucosal membranes leading to sneezing; stuffy/runny nose; nasal congestion; and itchy, watery and swollen eyes.

Author(s): 
D'Souza, P.
Amit, A.
Saxena, V. S.
Bagchi, D.
Bagchi, M.
Stohs, S. J.
Publication Title: 
Bioresource Technology

Modified solid-state fermentation (MSSF) of tannin-rich substrate yielding tannase and gallic acid was carried out using a co-culture of the filamentous fungi, Rhizopus oryzae (RO IIT RB-13, NRRL 21498) and Aspergillus foetidus (GMRB013 MTCC 3557). Powdered fruits of Terminalia chebula and powdered pod cover of Caesalpinia digyna was used in the process and the different process parameters for maximum production of tannase and gallic acid by co-culture method were optimized through media engineering. MSSF was carried out at the optimum conditions of 30 degrees C and 80% relative humidity.

Author(s): 
Banerjee, Rintu
Mukherjee, Gargi
Patra, Krushna Chandra
Publication Title: 
Medicinal Chemistry (Shariqah (United Arab Emirates))

Ethanolic extracts of 30 Thai medicinal plants, traditionally used as alternative treatments in diabetes, were evaluated for antioxidative activity by the 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) method. They were evaluated in vitro for oxidative stress by thiobarbituric acid-reactive substance (TBARS) assay in pooled plasma of diabetic patients compared to without treatment of the extracts (control). The extracts were also assayed for protein glycation. The results showed that five plants had strong antioxidant activity: Phyllanthus emblica Linn.

Author(s): 
Kusirisin, W.
Srichairatanakool, S.
Lerttrakarnnon, P.
Lailerd, N.
Suttajit, M.
Jaikang, C.
Chaiyasut, C.
Publication Title: 
Journal of Food Science

Triphala, a mixture of Emblica officinalis, Terminalia chebula, and Terminalia bellirica, containing ingredients from plant origin, is often prone to microbial contamination. A high level of microbial contamination was observed in Triphala samples obtained from different sources. On gamma radiation processing, a sharp decline in log CFU was observed with increasing radiation dose and a complete decontamination at 5 kGy. Average D10 value for total aerobic and fungal counts were observed to be 0.55 +/- 0.073 kGy and 0.94 +/- 0.043 kGy, respectively.

Author(s): 
Kumari, N.
Kumar, P.
Mitra, D.
Prasad, B.
Tiwary, B. N.
Varshney, L.
Publication Title: 
Natural Product Communications

Abhayarishta is an Ayurvedic formulation prepared traditionally by the fermentation of the decoction of Terminalia chebula (pericarp), Vitis vinifera (fruits), Embelia ribes (fruits) and Madhuca indica (flowers). In the present communication, chemical changes occurring during fermentation in Abhayarishta have been studied for the purpose of its standardization. An HPLC-DAD method for quantitative estimation of selected marker constituents in the formulation has been developed and validated.

Author(s): 
Lal, Uma Ranjan
Tripathi, Shailendra Mani
Jachak, Sanjay M.
Bhutani, Kamlesh Kumar
Singh, Inder Pal

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