niger ZD-8;then the free gossypol and amino acids in the cottonseed meal substrate were determined;their in vitro digestibility of crude protein and amino acids were analyzed;and a morphology observation for the fermented cottonseed meal was conducted under environmental scanning electron microscope(ESEM).

However, the potential of cottonseed meal for animal feed is limited by the presence of gossypol (C_(30)H_(30)O_8), a toxic polyphenolic pigment.

To optimize the process parameters for detoxification of gossypol in cottonseed meal (CSM) by C.

Up to now, Ultraviolet wavelength is 254nm when freegossypol in cottonseed cake is determined by HPLC.

The effect of mixed culture solid fermentation of Candida tropicalis ZD-3 and Aspergillus niger ZD-8 on detoxification of cottonseed cake(CSC),as well as the effect of sodium carbonate and minerals on the reduction of free gossypol(FG) and crude protein(CP) contents were investigated during the mixed culture fermentation of CSC by detection of protein disappearance rate in vitro.

Cottonseed cake contains rich protein, besides contains toxic free gossyPol for domestic animals.

In this work, the contents of amino acids in three kinds of cottonseedcake powder from domestic and abroad were determined by using Waters Automatic Amino Acid Analyzer with postcolumn derivatization and fluorescence detection.

Nutritive value,antinutritional factors and research progress about microbial solid fermentation of cottonseed meal were reviewed.

As a kind of high quality feed protein source, cottonseed meals must be detoxified to eliminate the contained harmful gossypol before application.

58μmol/g; for cottonseed meal the crude protein was 32.

Effects of Different Dietary Cotton Meal Contents on Performance, Egg Quality and Plasma Biological Parameters of Layers;