Scale substance of wool

Geiger, Walton B.

doi:10.6028/jres.032.004

Cited by 22 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, analyses of various histological and protein fractions derived from wool have established that such structural components differ in composition both among themselves and from the original wool [5,11,16,18,21].…”

Section: Introductionmentioning

confidence: 99%

The Amino Acid Composition of Fractionated Cortical Cells From Wool

Simmonds

Bartulovich

1958

Textile Research Journal

View full text Add to dashboard Cite

Two cortical cell fractions separated from wool after treatment at 30° C. with 6 N HCl for 50 hr. have been analyzed for their amino acid composition. The heavy fraction was significantly richer than the light fraction in amide nitrogen, cystine, serine, and proline, but was deficient in alanine, glutamic acid, glycine, leucine, lysine, phenylalanine, and tyrosine. Both cortical cell fractions were richer than the original wool in cystine, lysine, and proline, while the material dissolved by the acid treatment was richer in glycine, phenylalanine, serine, and tyrosine.

show abstract

Section: Introductionmentioning

confidence: 99%

The Amino Acid Composition of Fractionated Cortical Cells From Wool

Simmonds

Bartulovich

1958

Textile Research Journal

View full text Add to dashboard Cite

show abstract

“…The problem is confused in the case of wool by uncertainty as to the number of molecular species which are, in fact, present in the wool. Thus, wool has been broken up into fractions containing widely varying proportions of various amino-acids (for ACIDIC PEPTIDES FROM WOOL bibliography and discussion see Geiger, 1944;Lindley, 1947;Mercer & Rees, 1946), though Farrant, Rees & Mercer (1947) have obtained electronmicrographs for wool degraded by mechanical or enzyme action which suggests that both the protofibrils and matrix material which together make up the cortical cells consist of similar approximately spherical particles. There is thus no certainty as to how many proteins exist in wool and it is clearly desirable that such products should be analyzed as soon as they can be separated.…”

mentioning

confidence: 99%

A study of the acidic peptides formed on the partial acid hydrolysis of wool

Consden

Gordon

Martin

1949

Biochemical Journal

View full text Add to dashboard Cite

“…Chemical analyses have been made of intact fibres (Simmonds 1954(Simmonds , 1955(Simmonds , 1956Oorfield and Robson 1955;Ward, Binkley, and Snell 1955;Bradbury 1960a) and of separated cuticle (Geiger 1944;Lustig and Kondritzer 1945;Lindley 1947;Elliott and Roberts 1957;Elliott, Asquith, and Rawson 1959;Bradbury 1959Bradbury , 1960a and cortical cells (Ward, Binkley, and Snell 1955 ;Ward and Bartulovich 1956;Simmonds and Bartulovich 1958). However, the results of analyses of separated components obtained by different workers have not shown good agreement for three reasons.…”

Section: Introductionmentioning

confidence: 99%

The Chemical Composition of Wool

Bradbury¹,

Chapman²

1964

Aust. Jnl. Of Bio. Sci.

View full text Add to dashboard Cite

SummaryA study is made of the disruption of wool by ultrasonic disintegration and the separation and identification by microscopy of the major components of the fibre. The ultrasonic disintegration process is investigated empirically in order to establish the conditions under which maximum rates of disruption occur. Of a large number of liquids examined it is found, in confirmation of earlier work, that the rate of disintegration of wool is very slow in water but usually increases in amount as the swelling of the fibre increases. The several exceptions to this rule show that there are other factors of secondary importance in determining the rate of disruption. The amount of disruption is sufficient for preparative purposes and increases in amount in the series dimethyl sulphoxide, formic acid, and dichloroacetic acid.Cortical cells, cuticle, and disrupted cortical cells can be separated on the basis of their different sizes by a combination of screening and sedimentation methods. The histological purity of the fractions is established by light and electron microscopy. It is also shown that the random nature of the ultrasonic disruption process results in the production of components of a continuous range of sizes from cortical cells down to needle· like components of size approaching that of microfibrils.

show abstract

Scale substance of wool

Cited by 22 publications

References 9 publications

The Amino Acid Composition of Fractionated Cortical Cells From Wool

The Amino Acid Composition of Fractionated Cortical Cells From Wool

A study of the acidic peptides formed on the partial acid hydrolysis of wool

The Chemical Composition of Wool

Contact Info

Product

Resources

About