Why is it that soybean meal with more hulls actually has a higher protein content?
There are a lot of soybean hulls, yet the protein content is higher instead. What could be the reason??
This post was last edited by zzzxxxfff2005 on 2009-11-24 20:42
A new batch of 43 soybean meal has arrived. The color is darker, with many small carbonized black specks, and the hulls are noticeably more than in ordinary 43 soybean meal. Yet the measured protein is 45.5. What is causing this? If it is adulterated, what would be added? Urea? Biuret? If we test further, what should we test? Crude fiber? True protein? Discussion welcome.
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Could it be produced from domestic soybeans? Domestic soybeans have higher crude protein.
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Reply to 2#yingyinghongyi
A small factory in Guangxi. It wasn't written on the bag either.
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Can the original poster take a photo and upload it for us to see? Soybean meal is so expensive now. If 43 soybean meal has 45 protein, wouldn't the manufacturer lose badly? I suspect there's a problem.
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This post was last edited by zzzxxxfff2005 on 2009-11-24 21:02
Reply to 4#Crude protein
Sorry, I didn't take a photo. My thinking is the same as yours. No manufacturer would be that foolish.
Our quality control took a sample and tested it yesterday, and took another sample and tested it again today. The results were the same. The crude fiber result will be available tomorrow, to see just how high it is. This is a new factory, and this is also the first time we have received their raw material.
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It has a lot to do with the type and origin of the soybean meal. Sometimes the dehulled soybean meal we receive isn't actually without soybean hulls. In fact, it just has slightly higher protein. Where we are, as long as the protein is above 44.5% on a worldwide basis, we call it dehulled soybean meal. In fact, it has more hulls than the usual 43CP soybean meal.
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It seems soybean meal produced from Brazilian soybeans has a darker color. We encountered a similar problem before and thought our company had gotten a bargain, so we didn't do further testing.
Please post the analysis results, original poster.
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What is the moisture content?
A new batch of 43 soybean meal has arrived. The color is darker, with many small carbonized black specks, and the hulls are noticeably more than in ordinary 43 soybean meal. Yet the measured protein is 45.5. What is causing this? If it is adulterated, what would be added? Urea? Biuret? If we test further, what should we test? Crude fiber? True protein? Discussion welcome.
--------------------------------------
Could it be produced from domestic soybeans? Domestic soybeans have higher crude protein.
--------------------------------------
Reply to 2#yingyinghongyi
A small factory in Guangxi. It wasn't written on the bag either.
--------------------------------------
Can the original poster take a photo and upload it for us to see? Soybean meal is so expensive now. If 43 soybean meal has 45 protein, wouldn't the manufacturer lose badly? I suspect there's a problem.
--------------------------------------
This post was last edited by zzzxxxfff2005 on 2009-11-24 21:02
Reply to 4#Crude protein
Sorry, I didn't take a photo. My thinking is the same as yours. No manufacturer would be that foolish.
Our quality control took a sample and tested it yesterday, and took another sample and tested it again today. The results were the same. The crude fiber result will be available tomorrow, to see just how high it is. This is a new factory, and this is also the first time we have received their raw material.
--------------------------------------
It has a lot to do with the type and origin of the soybean meal. Sometimes the dehulled soybean meal we receive isn't actually without soybean hulls. In fact, it just has slightly higher protein. Where we are, as long as the protein is above 44.5% on a worldwide basis, we call it dehulled soybean meal. In fact, it has more hulls than the usual 43CP soybean meal.
--------------------------------------
It seems soybean meal produced from Brazilian soybeans has a darker color. We encountered a similar problem before and thought our company had gotten a bargain, so we didn't do further testing.
Please post the analysis results, original poster.
--------------------------------------
What is the moisture content?