Aspects of the photochemistry of wool yolk (wool wax and suint)

Collins, Stephen F; Davidson, R. S.

doi:10.1111/j.1478-4408.1997.tb03774.x

Cited by 5 publications

(4 citation statements)

References 103 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result is in contradiction with those cited by Collins and Davidson who found amounts of alcohol in wax. 13 The unsaponifiable portion of wool wax consists of aliphatic monoalcohols, alkane 1,2-diol, cholesterol, triterpene alcohols, and small amounts of hydrocarbons and auto-oxidation products. 13 High COD values were noted confirming high pollution degree of effluents.…”

Section: Discussionmentioning

confidence: 99%

“… 13 The unsaponifiable portion of wool wax consists of aliphatic monoalcohols, alkane 1,2-diol, cholesterol, triterpene alcohols, and small amounts of hydrocarbons and auto-oxidation products. 13 High COD values were noted confirming high pollution degree of effluents. However, Low composition of water moisture (3 to 6%) coupled with a large amount of phosphate (4.2 to 4.7%) and conversely low doses of protein (.08%) and nitrogen (.07%) were noted.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, it contains traces of polypeptides and inorganic phosphate. 13 Using GC-MS, six compounds were identified compared to NIST library with domination of cholesterol. 7-ketocholesterol, which is known to be present in lanolin especially as a product of aging, is not detected in our study.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Wool Wax Extraction From Washing Effluent and Effect on Olea europea Germination and Growth

Aissani

Ghidaoui²,

Sebaï

2022

Dose-Response

View full text Add to dashboard Cite

Effluents from textile industry using wool pose serious environmental nuisances in Tunisia that are mainly due to their pollutant load and the release of unpleasant odors. In order to minimize these hazards and to take advantage of these wastes for the sake of our environment, the present work consists on valuating wool wax from washing effluent on olive ( Olea europea), germination and growth. Extraction was made in water at 70°C or hexane using sonication followed by concentration of the extracts in soxhlet apparatus. Results showed that this waste is characterized by its richness in total lipid content with extraction yields of 60.7 and 95.6%, respectively. GC-MS analysis of wax showed its richness on fatty acids. Six saturated fatty acids ranking from 15 to 27 carbon atoms were characterized. Furthermore, diluted wax at a dose of 1.25 mg/g significantly improves germination of olive seeds by germination index calculation, to reach a maximum of 150 ± 17%. In fertigation experiment, the use of the same dose of diluted wax promotes plant length to reach 45.7 ± 2.52 cm. GC-MS analysis after derivatization showed significant enhancement of auxin production in plants treated with 1.25 mg of wax/g of soil compared to control with a concentration of 1.1 ± .1 and .7 ± .2 ng/mg, respectively. This leads us to valuate wool wax as environmental friendly natural product in agricultural and fertigation practice of olive plant.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Wool Wax Extraction From Washing Effluent and Effect on Olea europea Germination and Growth

Aissani

Ghidaoui²,

Sebaï

2022

Dose-Response

View full text Add to dashboard Cite

show abstract

“…Unlike hexadecane and cetyl palmitate where the average emulsion size decreased after going through the XME, for lanolin it increased, from ~11.5µm to ~20µm (Table 3). This maybe because lanolin is a complicated mix of esters plus some free acids and alcohols (Collins & Davidson 1997) resulting in a much more polar environment which encourages droplet growth on the membrane wall.…”

Section: Lanolinmentioning

confidence: 99%