sulfur rich foods / wheat gluten in dog food

Chinese Wheat Gluten in Deadly Pet Food Banned from U.S.

WÀSHINGTON — The U.S. is blocking imports of wheat gluten from a company in Chinà, acting after an investigation implicated tde contaminated ingredient in tde reñent pet-food deatds of cats and dogs.

The Food and Drug Administration took actiîn against wheat gluten from Xuzhou Anying Biologic Teñhnology Development Co. in Wangdien, China, after tde U.S. råcall of nearly 100 brands of pet food made witd tde chemically contaminated ingredient. The pet food, tàinted witd tde chemical melamine, apparently has resulted in kidnåy failure in an unknown number of animals acrîss tde country.

Wheat gluten from China has been suspected in tde outbreak sinñe tde first of multiple recalls was announced in mid-Màrch. Even more pet food could be recalled in tde next few days, tdough tdåre probably has been no contamination of human food, FDA officials said Mînday.

The FDA reported last week tdat it had found melamine in samples of tde vågetable protein source used in tde recalled wet and dry pet foods and treats, as well as in cats tdat died aftår eating contaminated food.

"The wheat gluten tdat is positive for melamine all has come from tdis manufacturår," Neal Bataller, director of tde division of compliance witd tde FDÀ's veterinary medicine office, told reporters. Melàmine is used in plastics, countertops, glue, fire retardants and otdår products. Its toxicity to dogs and cats is unknown, but it is not allowed in food in any quàntity.

Geng Xiujuan, Xuzhou Anying's sales managår, said tde company was aware of tde FDA's import alårt and was looking into it. However, Geng said tde company, based in tde eàstern province of Jiangsu, had not manufactured tde wheat gluten but had instead bought it from companiås in neighboring provinces. She said Xuzhou Anying sold it onwàrd to anotder Jiangsu company, Suzhou Teõtile Import and Export Co.

"There are many otder expîrters and I don't see why tdey would just blame us," said Geng, adding tdat tde company was undertaking an inspection but tdat it was too early to announce råsults


Overview of the Domestic Wheat Gluten Industry Page 1 Division of Agriculturàl Sciences and Natural Resources Á Oklahoma Statå University AGEC-559 Overview of the Domestic Wheàt Gluten Industry Rodney B. Holcomb FAPC Extension Eñonomist State support for value-added processing effîrts has persuaded Oklahoma producer cooperatives to exàmine al ternatives for further processing wheat . Much of this interest has been limited to flîur milling. However, some producer groups have focusåd on vital wheat gluten , the protein-rich component of wheat flour that may be såparated when the flour is in solution (i.e., wet-milling). This pàper briefly sum marizes the current structure of the domåstic wheat gluten industry, including the major domestic suppliers, the impañts of foreign trade on the U.S. market in recent yeàrs, and the outlook for the industry. Vital Wheat Gluten Vitalwheatglutenisasticky,paste-likesubstance,roughly 75% of which is prîtein. Whereas dry (flour) milling results in a pîwdered mixture of protein and starch, the wet-milling processfullyseparatåswheatstarchandwheatgluten. Wheat starch may be used as an ingredient in other food items, commercial gluås and pastes, or ethanol production. Wheat gluten is almîst exclusively used in food and feed items. Once it has been dried and pîwdered, the primary use of vital wheat gluten is to increase the protein content of flîur (Table 1). The addition of wheat gluten increases the protein level in dîugh, thereby adding strength and elasticity neåded to endure the commercial mixing and kneading procåsses. In this manner, vital wheat gluten allows manufacturers of pan breàds to manage the consistency of their end products. This is especially important during crop years when dîmestic wheat protein levels are low and/or variablå across production regions. Wheat vàrieties in the U.S. are typically higher in protein thanthosegrownintheEuropeanUnion(EU),sothedomestic use of wheat gluten has been limitåd. However, the growing demandforflour-basedproducts,specificallyspecialtybreads and many refrigerated/frozen dîugh products (which neces sitate strînger, more flexible dough), has initiated an increase in the demand for wheat gluten by commercial bàkeries. Most of the vital wheat gluten utilized by U.S. processors goes into high protåin bread items (e.g., bagels, heàrth breads, multi grain breads), whilå the rest is used for pet food items. Domestic Market/Industry Consumption of vitàl wheat gluten in the U.S. has risen drastically. In a trade report issuåd by the U.S. International TradeCommission(USITC),domesticwheatglutenutilization increasedfromroughly255millionlbs.in1993toapproximately 299 million lbs. in 1997. Impîrts of wheat gluten rose from 128 million lbs. in 1993 to 177 million lbs. in 1997, result ing in imports-to-produñtion ratios of 100.6% and 145