Production of ethanol from molasses at 45 °C using Kluyveromyces marxianus IMB3 immobilized in calcium alginate gels and poly(vinyl alcohol) cryogel

1998 ◽  
Vol 19 (2) ◽  
pp. 87-90 ◽  
Author(s):  
S. Gough ◽  
N. Barron ◽  
A. L. Zubov ◽  
V. I. Lozinsky ◽  
A. P. McHale
Keyword(s):  
Kluyveromyces Marxianus ◽  
Vinyl Alcohol ◽  
Calcium Alginate ◽  
Poly Vinyl Alcohol ◽  
Alginate Gels ◽  
Calcium Alginate Gels

Synthesis of spherical porous cross-linked glutaraldehyde/poly(vinyl alcohol) hydrogels

2016 ◽  
Vol 36 (9) ◽  
pp. 891-898
Author(s):  
Sadao Araki ◽  
Yuko Shirakura ◽  
Harufumi Suzuki ◽  
Hideki Yamamoto
Keyword(s):  
Sodium Alginate ◽  
Vinyl Alcohol ◽  
Calcium Alginate ◽  
Chloride Solution ◽  
Calcium Chloride Solution ◽  
Inorganic Salts ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Alginate Content ◽  
Calcium Alginate Gels

Abstract Spherical glutaraldehyde cross-linked poly(vinyl alcohol) (PVA) hydrogels (G-PVA) were prepared in three steps: gelatification, cross-linking, and removal of alginate. Gelatification was carried out by dropping a solution of alginate, PVA, and glutaraldehyde into a calcium chloride solution to form calcium alginate. Calcium alginate gels were prepared at 20°C, 40°C, 60°C, and 80°C to study the effect of gelatification temperature on the formation of pores on the surface of G-PVA. The effect of the alginate content was studied. PVA and glutaraldehyde were cross-linked by immersion of the gels in a solution of H2SO4 and Na2SO4. The effect of sodium alginate and inorganic salts, such as MgSO4 and K2SO4, on the formation of pores on the surface of G-PVA was confirmed.

Magnetic resonance imaging (MRI) of calcium alginate gels

1994 ◽  
Vol 12 (2) ◽  
pp. 309-311 ◽  
Author(s):  
K. Potter ◽  
T.A. Carpenter ◽  
L.D. Hall
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Calcium Alginate ◽  
Resonance Imaging ◽  
Alginate Gels ◽  
Magnetic Resonance Imaging Mri ◽  
Calcium Alginate Gels

Evidence for Egg-Box-Compatible Interactions in Calcium−Alginate Gels from Fiber X-ray Diffraction

2007 ◽  
Vol 8 (7) ◽  
pp. 2098-2103 ◽  
Author(s):  
Pawel Sikorski ◽  
Frode Mo ◽  
Gudmund Skjåk-Bræk ◽  
Bjørn T. Stokke
Keyword(s):  
Calcium Alginate ◽  
X Ray Diffraction ◽  
X Ray ◽  
Alginate Gels ◽  
Calcium Alginate Gels ◽  
Compatible Interactions

Papain wound dressings obtained from poly(vinyl alcohol)/calcium alginate blends as new pharmaceutical dosage form: Preparation and preliminary evaluation

2017 ◽  
Vol 113 ◽  
pp. 11-23 ◽  
Author(s):  
J.A.P. Dutra ◽  
S.G. Carvalho ◽  
A.C.D. Zampirolli ◽  
R.D. Daltoé ◽  
R.M. Teixeira ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Calcium Alginate ◽  
Dosage Form ◽  
Wound Dressings ◽  
Poly Vinyl Alcohol ◽  
Preliminary Evaluation ◽  
Pharmaceutical Dosage Form

Production of L(+)-lactic acid byRhizopus oryzae immobilized in calcium alginate gels

1989 ◽  
Vol 11 (2) ◽  
pp. 119-120 ◽  
Author(s):  
Y. D. Hang ◽  
H. Hamamci ◽  
E. E. Woodams
Keyword(s):  
Lactic Acid ◽  
Calcium Alginate ◽  
Alginate Gels ◽  
Calcium Alginate Gels

Production of oxytetracycline by immobilizedStreptomyces rimosus cells in calcium alginate gels

1994 ◽  
Vol 14 (3) ◽  
pp. 303-309 ◽  
Author(s):  
M. A. Farid ◽  
A. I. El Diwany ◽  
H. A. El Enshasy
Keyword(s):  
Calcium Alginate ◽  
Alginate Gels ◽  
Calcium Alginate Gels

FABRICATION, CHARACTERIZATION, AND MODIFICATION OF THE TEXTURE OF CALCIUM ALGINATE GELS

1977 ◽  
Vol 42 (4) ◽  
pp. 976-981 ◽  
Author(s):  
NANCY LUH ◽  
JAMES M. FLINK ◽  
MARCUS KAREL
Keyword(s):  
Calcium Alginate ◽  
Alginate Gels ◽  
Calcium Alginate Gels

Entrapment of ethyl vanillin in calcium alginate and calcium alginate/poly(vinyl alcohol) beads

2013 ◽  
Vol 67 (2) ◽  
Author(s):  
Steva Levic ◽  
Verica Djordjevic ◽  
Nevenka Rajic ◽  
Milan Milivojevic ◽  
Branko Bugarski ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Calcium Alginate ◽  
Poly Vinyl Alcohol ◽  
Gel Formation ◽  
Ftir Analysis ◽  
Ethyl Vanillin ◽  
Freeze Thaw ◽  
Thermal Gravimetry ◽  
The Matrix ◽  
Cross Linker

AbstractElectrostatic extrusion was applied to the encapsulation of 3-ethoxy-4-hydroxybenzaldehyde (ethyl vanillin) in calcium alginate and calcium alginate/poly(vinyl alcohol) beads. The calcium alginate/poly(vinyl alcohol) hydrogel spheres were formed after contact with the cross-linker solution of calcium chloride, followed by the freeze-thaw method for poly(vinyl alcohol) gel formation. The entrapment of aroma in beads was investigated by FTIR and thermal analysis (thermogravimetry/differential thermal gravimetry; TGA/DTG). The mass loss in the temperature range of 150–300°C is related to degradation of the matrix and the release of ethyl vanillin. According to the DTG curve, the release of ethyl vanillin occurs at about 260°C. TGA measurements of the stored samples confirmed that formulations were stable for a period of one month. FTIR analysis provides no evidence for chemical interactions between flavour and alginate that would alter the nature of the functional groups in the flavour compound.

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