Improved Soxhlet Extractor

Neustadt, M. H.

doi:10.1021/i560105a019

Cited by 9 publications

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“…F a t : The ground dehydrated scrapple was extracted with ethyl ether in a Soxhlet apparatus for 16 hours during the first few months of the study. Later the extraction was modified using petroleum ether and an bxtraction period of three hours, as described by Neustadt (1942).…”

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DEHYDRATION OF MEAT SCRAPPLES¹

Carl

Watts

Morgan

1944

Journal of Food Science

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TJiider present world conditions there is au urgent need for protein foods which are highly concentrated and which require little shipping space. Dehydrated meat is one answer to the need. Ground beef is relatively easy to dehydrate but the supply is somewhat limited owing to the long period of growth required, Kraybill (1943). Pork production could be increased in a shorter time but dehydration presents several problems.The outstanding difficulty is the high fat content of pork as compared with beef and the greater susceptibility of pork to oxidative rancidity. This not only presents the problem of removal of excess fat previous to actual dehydration, but also makes prevention of rancidity necessary if the product is to be stored for more than a fen-weeks. One approach to the problem is the use of lean pork cuts, such as leg or shoulder, from which outer layers of fat can be trimmed. However, on a commercial scale it is not practical to trim carcasses to less than 20 per cent fat, which is not an adequately low level for dehydration. The method used by a large producer was that of cooking the pork, pressing out the fat and liquid, allowing the fat to coalesce in a layer and removing it by skimming, Stateler (1942). The method investigated by this laboratory was the addition of corn meal to pork in the form of scrapple. It was believed that the tlavor and texture would be improved and that the corn meal would absorb excess fat and possibly act as an antioxidant. It has also been found that the use of cereals protects thiamin, according to Rice, Schultz, and Robinson (1943). EXPERIMENTAL iv1 ETHODSDehydration: All of the scrapples were dehydrated in a home-type, forced-draft, tunnel dehydrator, described by Cruess, Faust, and Greaves (1943). A small Thermidor combination fan and electric heater was the source of heat. No arrangement for recirculation was included. The temperature of drying varied from 48.9 to 6OoC.(120 to 140°F.) as measured by thermometers placed on each tray in the dehydrator. The position of the trays was changed each hour to insure more even drying. The time required for dehydration to a moisture content of five to 10 per cent was 'The work described in this paper was done under a contract, recommended by the Committee on Medical Research, between the office of Scientific Research and Development and the University of California.We wish to acknowledge many valuable suggestions offered by Mr. A. L. Pitman, Western Regional Laboratory, as well as technical assistance in storage and compression of samples contributed by the Dehydration Committee, Bur. Agr. and Ind. Chem., Agr.Res. Admin., U. S. Dept. Agr. 319

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confidence: 99%