SAMUEL FOGEL
Pharmacy in Newton, MA
License number
Pennsylvania RP023950L
Category
Pharmacy
Type
Pharmacist
Address
Address
2
Newton, MA 02159
Pennsylvania
Pennsylvania
Professional information
Production Of Algal Bio-Polymers
US Patent:
3958364, May 25, 1976
Filed:
May 5, 1975
Appl. No.:
5/574744
Inventors:
Paula Schenck - Boston MA
Patricia L. Foster - Cambridge MA
William W. Walker - Allston MA
Samuel Fogel - Newton MA
Patricia L. Foster - Cambridge MA
William W. Walker - Allston MA
Samuel Fogel - Newton MA
Assignee:
American Bioculture, Inc. - Plumsteadville PA
International Classification:
A01G 700, C02C 100
US Classification:
47 14
Abstract:
Cultivation of algae to produce long chain polymers having flocculating properties is disclosed. Algae are cultivated in an aqueous nutrient medium until relatively high culture densities are achieved and thereafter under conditions in which the cells become deficient in nitrogen thereby causing the cells to shift from a growth phase in which protein production predominates to a growth phase in which extracellular polymer production predominates. An adequate supply of other nutrients as well as CO. sub. 2 and light are maintained in the culture medium during the latter phase to insure that a change in cell metabolism is produced by a deficiency in nitrogen. The algae then produce high molecular weight polymers exhibiting strong flocculating activity.
Soil Treatment Methods
US Patent:
3969844, Jul 20, 1976
Filed:
May 1, 1975
Appl. No.:
5/573609
Inventors:
Samuel Fogel - Newton MA
Patricia L. Foster - Cambridge MA
Paula Schenck - Boston MA
William W. Walker - Allston MA
Patricia L. Foster - Cambridge MA
Paula Schenck - Boston MA
William W. Walker - Allston MA
Assignee:
American Bioculture, Inc. - Plumsteadville PA
International Classification:
A01G 700
US Classification:
47 58
Abstract:
Culturing an alga with known flocculant production capability on the soil for the purposes of aggregating soil particles is disclosed. According to the disclosure, flocculant producing algae are known in liquid culture medium as disclosed in pending application Ser. No. 421,527 filed Dec. 4, 1973. The nitrogen in the culture medium is maintained so that cellular nitrogen does not fall below 10%. The algae are then inoculated onto soil which is provided with supplemental nutrients and moisture sufficient to produce a multiplication on the order of several hundred fold. The nutrients other than nitrogen are provided in sufficient quantity to permit a further period of growth during which algal flocculants are produced which have the property of binding soil particles into workable aggregates.