Russet Burbank

Reeve, R. M., Timm, H., Weaver, M. L. (1971). Cell size in Russet Burbank potato tubers with various levels of nitrogen and soil moisture tensions. American Potato Journal, 48, 450 56. 

Figure 9.7 Profile of normalized storage modulus, E jE of Russet Burbank potato disc as a function of heating time at 60°C E is the storage modulus of the raw sample = 1.87 MPa. (Source Bu-Contreras, 2001).

Bu-Contreras, R., Rao, M. A. (2001). Influenee of heating conditions and starch on the storage modulus of Russet Burbank and Yukon Gold potatoes. J. Sci. FoodAgric., 81, 1504-1511. 

Thornton, M. K., Lewis, M. D., Barta, J. L., Kleinkopf, G. E. (1994). Effect of nitrogen management on Russet Burbank tuber dormancy and response to CIPC. American Potato Journal, 71, 705. 

Figure 17.10 Total biomass of potato plants grown under two PARs (400 and 800 pimol m s ), two CO2 concentrations (350 and 1000 ppm), and two photoperiods (12 and 24 h). Data are averages for three cultivars, Norland, Russet Burbank, and Denali, grown for 90 days. Tuber yields showed a similar response pattern to total biomass. CO2 enrichment showed the greatest proportionate benefit under the 12-h photoperiod and 400 pimol s PAR, and no benefit or even had a negative effect under 800 pimol s and 24 h lighting (Wheeler et al., 1991).

Potatoes. Treatment. Seed pieces of White Rose, Russet Burbank, and Pontiac potatoes were treated with an aqueous solution of 25 p.p.m. of tritium-labeled gibberellie acid (specific activity 108 /xc. per mg.) for 5 minutes. The dried pieces were kept overnight at 68° F. (80 to 85% relative humidity) and then planted at the University Farm, Davis, Calif. Thirty days later, leaves and rhizomes of the White Rose variety were sampled to determine the translocation of gibberellie acid. New potatoes were harvested 60 days after planting. The... 

Potatoes with rough, corky spots on skin. Cause cab. Trim out spots before using tubers. Prevent this fungal disease by keeping soil pH below 5.5 and planting resistant cultivars such as Beltsville , Norland , Onoway , Pungo , Rhinered , Russet Burbank , Russian Banana , and Superior . 

RB RUSSET BURBANK POTATO NC NORCHIP POTATO TOB TOBACCO... 

Atlantic was much less subject to such browning than Russet Burbank. 

Changes in Chemical Composition of Potato (Russet Burbank) after Processing... 

Inhibitors of the metallo-carboxypeptidases A and B are rare. The first such inhibitor was isolated from potatoes, and later an inhibitor with similar specificity was isolated from the intestinal worm, Ascaris lumbricoides. The latter inhibitor is difficult to purify, which precludes any nutritional studies in animals. Potato CPI, on the other hand, can represent a significant contribution to the potato proteins, depending upon variety (7). In a survey of 106 commercial and experimental varieties, CPI varied from zero to 846 yg/ml tuber juice (over 4% of the soluble proteins). In Russet Burbank potatoes the levels are about 30% of this value. The isolation of enough CPI from Russet Burbank potatoes for a nutritional study was therefore possible, if a simple efficient method could be developed to isolate it. 

Russet Burbank potatoes were quartered and placed in a water bath at 80 C for 10 min. The tubers were rinsed with cold water and blended to a paste. Absolute ethanol was blended in slowly with the paste until it was 80% ethanol by volume. The mixture was filtered through Whatman No. 1 filter paper with the aid of a vacuum. The ethanol in the filtrate was removed by vacuum evaporation and the resulting solution was dialyzed in a 2,000 MW cut off dialysis bag against several changes of distilled water. The remaining extract in the dialysis bag was lyophilized. The dry material contained one major polypeptide, CPI, and some minor components. On a protein basis the material was over 95% CPI. Purity of this crude CPI fraction was also demonstrated by electrophoresis by the method of Panyim and Chalkley (8). No Inhibitor I nor Inhibitor II could be detected by immunological techniques, however a small quantity of trypsin inhibitor activity (less than 0.5%) was present, presumably from contamination by the polypeptide trypsin inhibitor that is present in potato tubers (4). This CPI preparation was utilized for the chick feeding experiments. 

Supplementing chick diets with a protein fraction, isolated from raw Russet Burbank potato tubers, enriched in proteinase inhibitors, had previously been shown to severely depress their growth (5). The inhibitor-rich fraction contained at least six well characterized inhibitors of mammalian pancreatic digestive proteinases trypsin, chymotrypsin, elastase and carboxypeptidases A and B (5). Since the fraction contained an array of proteinase inhibitors it was not known if CPI contributed to the growth depressing activities. 

RESPONSES TO COLD IN TRANSGENIC RUSSET BURBANK AND BOLIVIAN POTATO... 

Figure 1, Electrolyte leakage of potato leaf tissue as a percent of total electrolytes in the leaf. Leaf tissue was chilled to -2 °C and incubated for 1, 2 or 3 hours. RB, untransformed Russet Burbank. AFP24-1 second generation PHA-AFP transgenic Russet Burbank line. Ch aska, frost-resistant Bolivian potato variety.

Leaf tissue from untransformed Russet Burbank, transgenic plant line AFP24-1 and Ch aska where brought from 22 to -2 C in one hour and then held at that temperature for up to 3 additional hours. 

Russet Burbank leaf tissue released over 60% of total electrolyte after 2 hours at the sub-zero temperature Figure 1). The frost-resistant Ch aska leaf tissue showed no sign of frost-induced electrolyte release... 

Figure , Fatty acid mole% in PC lipid fractions of three potato lines. RB= nontransgenic Russet Burbank. AFP=24-1 and BOL=Ch aska.TLC and GLC were performed using standard techniques.

Responses to Cold in Transgenic Russet Burbank and Bolivian Potato. 

Mat r of the maincrop growers enter into contracts with processors or supermarkets. Some growers have entered into agreements with local packhouses, while others have set up their own on-farm pack lines to provide supermarkets with pre-packed, labelled and bar-coded prodnce. Maincrop growers have less opportunity to play the market . Older maincrop varieties such as Russet Burbank are back in favorrr and grown on contract for the French fries trade. 

Ware Maincrop Desiree, King Edward, Maris Piper (versatile variety snitable for ware and chipping), Markies, Melody, Harmony, Pentland Dell, Eontane. French Fries Maincrop Russet Burbank. 

---