Results 1 - 10 of 108

Anti-fertilization activity of a spirocyclic sesquiterpene isocyanide isolated from the marine sponge Geodia exigua and related compounds.

HERDIN record number :
R10-MSUIIT-18061415095490
Author(s) :
Emi   Ohta, Mylene   .  UY, Shinji  Ohta, Mihoko   YANAI, Toshifumi  HIRATA, Susumu Ikegami
Source Document :
Bioscience, Biotechnology, and Biochemistry. ; Vol. 72 ( 7 ) : p. 1764-1771 (Journal)
Abstract :
(−)-10-epi-Axisonitrile-3, a spirocyclic sesquiterpene isocyanide obtained from the marine sponge Geodia exigua, immobilized sperm of sea urchin and starfish to block fertilization at the minimum effective concentration of 0.4 μg/ml. On the other hand, fertilized eggs developed normally to the . . .
Physical Location :
Office of the Vice Chancellor for Research and Extension, Mindanao State University-Iligan Institute Technology
Fulltext Availability :
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Extraction of oil from Moringa oleifera kernels using supercritical carbon dioxide with ethanol for pretreatment: Optimization of the extraction process.

HERDIN record number :
R10-MSUIIT-18061315155627
Author(s) :
Hoang  N. Nguyen, Pag-asa   . Gaspillo, Julius  B. Maridable, Roberto   . Malaluan, Hirofumi Hinode, Chris Salim, Ha  . Huynh
Source Document :
Chemical Engineering and Processing: Process Intensification. 2011; Vol. 50 ( 11-12 ) : p. 1207-1213 (Journal)
Abstract :
The study involved the extraction of oil from Moringa oleifera (MO) kernels using supercritical fluid extraction (SFE) technique. The arrays of operating parameters are extraction condition, loading configuration, and SC-CO2 with ethanol addition for substrate pretreatment. It identifies a combin . . .
Physical Location :
Office of the Vice Chancellor for Research and Extension, Mindanao State University-Iligan Institute Technology
Fulltext Availability :
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Exiguamide, a new spirocyclic sesquiterpene from the marine sponge Geodia exigua that inhibits cell fate specification during sea urchin embryogenesis.

HERDIN record number :
R10-MSUIIT-1806141008075
Author(s) :
Mylene M. Uy, Shinji  Ohta, Mihoko  Yanai, Emi Ohta, Toshifumi Hirata, Susumu Ikegami
Source Document :
Bioorganic & Medicinal Chemistry Letters. ; Vol. 12 ( 21 ) : p. 3037-3039 (Journal)
Abstract :
A new nitrogen-containing bicyclic spirosesquiterpene designated exiguamide which inhibited cell fate specification during sea urchin embryogenesis has been isolated from the marine sponge Geodia exigua. Its structure was determined by interpretation of spectral data and X-ray crystallographic an . . .
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Kinetics of glucose epimerization and decomposition in subcritical and supercritical water.

HERDIN record number :
R10-MSUIIT-18061313375721
Author(s) :
Bernard  M.  Kabyemela, Tadafumi   Adschiri, Roberto  M. Malaluan, Kunio  Arai
Source Document :
Industrial and Engineering Chemistry Research. 1997; Vol. 36 ( 5 ) : p. 1552-1558 (Journal)
Abstract :
Glucose decomposition kinetics in subcritical and supercritical water were studied for the temperatures 573, 623, and 673 K, pressures between 25 and 40 MPa, and residence times between 0.02 and 2 s. Glucose decomposition products were fructose, saccharinic acids, erythrose, glyceraldehyde, 1,6-a . . .
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Cellulose hydrolysis in subcritical and supercritical water.

HERDIN record number :
R10-MSUIIT-18061308434652
Author(s) :
Mitsuru Sasaki, Bernard  Kabyemela, Roberto  M. Malaluan, Satoshi  Hirose, Naoko  Takeda, Tadafumi   Adschiri, Kunio  Arai
Abstract :
In this paper we propose a new method to hydrolyze cellulose rapidly in supercritical water (SCW) to recover glucose, fructose and oligomers (cellobiose, cellotriose, cellotetraose, etc.). Cellulose decomposition experiments were conducted with a flow type reactor in the range of temperature from . . .
Physical Location :
Office of the Vice Chancellor for Research and Extension, Mindanao State University-Iligan Institute Technology
Fulltext Availability :
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ID2017 Cytotoxic activities of Philippine marine sponges against colon cancer cells.

HERDIN record number :
R10-MSUIIT-18060608341869
Author(s) :
Mylene M. Uy
Abstract :
Although the diversity of life in the terrestrial environment is exceptional, the greatest biodiversity is in the marine environment. Among the marine organisms, the sponges (Porifera) are the most prolific sources of bioactive secondary metabolites. The Philippines, with its long coastal lines, . . .
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Inhibition of Sea Urchin and Starfish Embryonic Development by Hexane Extracts from Five Philippine Marine Sponges.

HERDIN record number :
R10-MSUIIT-18060508093985
Author(s) :
Chona Gelani, Mylene M. Uy, Keisuki Yasuda, Emi Ohta, Shinji Ohta
Abstract :
The marine environment is undoubtedly a rich source of diverse organisms that possess bioactive secondary metabolites with important pharmacological activities. Marine sponges have since been contributing a wide array of compounds of biomedical and pharmaceutical importance. This study is an atte . . .
Physical Location :
Office of the Vice Chancellor for Research and Extension, Mindanao State University-Iligan Institute Technology
Fulltext Availability :
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Ficusnotins A-F: Rare diarylbutanoids from the leaves of Ficus nota.

HERDIN record number :
R10-MSUIIT-1806041410225
Author(s) :
Felmer S. Latayada, , Mylene M. Uy , Yu  Akihara., Emi Ohta, Tatsuo Nehira, Hisashi Ômura, Shinji Ohta
Source Document :
Phytochemistry. 2017; Vol. 141 : p. 98-104 (Journal)
Abstract :
Six diarylbutanoids, designated as ficusnotins A-F, with a rare carbon skeleton consisting of two aromatic rings separated by an unbranched C4-chain have been isolated from the leaves of Ficus nota (Blanco) Merr. (Moraceae). The structures were determined on the basis of spectroscopic data, as we . . .
Physical Location :
Office of the Vice Chancellor for Research and Extension, Mindanao State University-Iligan Institute Technology
Fulltext Availability :
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Glucose and Fructose Decomposition in Subcritical and Supercritical Water: Detailed Reaction Pathway, Mechanisms, and Kinetics.

HERDIN record number :
R10-MSUIIT-17050516213032
Author(s) :
Bernard  M.  Kabyemela, Tadafumi i Adschiri, Roberto  M. Malaluan, Kunio  Arai
Source Document :
Ind. Eng. Chem.. 1999; Vol. 38 : p. 2888-2895 (Journal)
Abstract :
Experiments were performed on the products of glucose decomposition at short residence times to elucidate the reaction pathways and evaluate kinetics of glucose and fructose decomposition in sub- and supercritical water. The conditions were a temperature of 300-400 ° . . .
Physical Location :
Office of the Vice Chancellor for Research and Extension, Mindanao State University-Iligan Institute Technology
Fulltext Availability :
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PHYTOCHEMICAL, BRINE SHRIMP LETHALITY ASSAY, ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY SCREENING OF NYPAFRUTICANS ("NIPA") LEAF EXTRACTS.

HERDIN record number :
R10-MSUIIT-17050208543647
Author(s) :
CHARLIE  A.  LAVILLA  Jr., MARVELOUS GRACE  L.  VILLAZORDA
Source Document :
International Journal of Chemical Sciences. ; Vol. 13 ( 3 ) : p. 1522-1528 (Journal)
Abstract :
The present study was designed to evaluate the phytochemicals, cytotoxicity and antioxidant activities of Nypafruticans extracts. Phytochemical screening revealed the presence of flavonoids (23.61%), alkaloids (2.64%), phlobatannins, saponins, and steroids. The ethyl . . .
Physical Location :
Office of the Vice Chancellor for Research and Extension, Mindanao State University-Iligan Institute Technology
Fulltext Availability :
Available

Results 1 - 10 of 108