No abstract

The cabbage samples (Brassica oleracea L. var. Late Glory) were subjected to steam blanching and blanching in solution. The blanching procedures were modified and further evaluated for their potential in offsetting the loss o f desirable flavor during processing. the concentrations of CaC12, NaHC03, flavor enhancers (FLVR), and NaCl. FLVR consisted of monosodium glutamate, 5'-inosinate, and 5'guanylate in the proportions of 95:2.5:2.5. The optimum FLVR concentrations for solution and steam blanching were 0.25 and 0.3%, respectively. Solution-and steam-blanched products lost 2.6 and 19.4% of their ascorbic acid, respectively, when stored at -19°C in a frozen condition for 1 year. The fresh cabbage contained 4.91 and 6.40 mg % o f n-butyl and 3-Indolylmethyl derivatives o f isothiocyanates, respectively. Blanching (solution and steam) o f cabbage resulted in a reduction of nbutyl and 3lndolylmethyl derivatives of isothiocyanate content. This decrease may explain the parallel decrease in "cabbage flavor intensity" in the processed cabbage samples. Although the addition of myrosinase (from fresh cabbage) to freeze-dehydrated cabbage flavor intensity," acceptability of the product remained lower than for the fresh wege ta ble.The compositions of solutions for blanching were defined in terms of

Diets containing dehydrated cabbage (Brassica oleracea L.) were fed to weanling male C57 BL/6 mice for nine months. Diets known to be adequate in all nutrients for mice were modified to include ground dehydrated cabbage leaves to 0, 10, 20, and 40% of their diet while holding protein, crude fiber, and lipid at constant levels. The animals were subcutaneously injected with 20 mg of 1, 2‐dimethylhydrazine (DMH) per kg body weight at weekly intervals for 36 weeks. The DMH carcino‐genicity varied with the proportion of cabbage in the diet and the tissue. Diets containing 10 and 20% cabbage enhanced DMH tumorigenicity while cabbage at 40% provided a protective effect. Tumors on the spermatic cord were the most predominant with occasional occurrence of kidney and liver tumors. Tumorigenicity is discussed in terms of two hepatic enzymes, cytochrome p‐450 and p‐nitroanisole‐o‐demethylase.

Cabbage was blanched in solution or vacuum impregnated in a solution