Effect of storage temperature and size on French fry quality, shrinkage and specific gravity of Maine potatoes

1950 ◽  
Vol 27 (12) ◽  
pp. 417-424 ◽  
Author(s):  
G. L. Terman ◽  
Michael Goven ◽  
C. E. Cunningham
Keyword(s):  
Specific Gravity ◽  
Storage Temperature ◽  
French Fry

Effect of storage temperature and sprout inhibitors on mealiness, sloughing, and specific gravity of Russet Burbank potatoes

1966 ◽  
Vol 43 (1) ◽  
pp. 10-21 ◽  
Author(s):  
Helen H. Cunningham ◽  
Mary V. Zaehringer ◽  
Walter C. Sparks
Keyword(s):  
Specific Gravity ◽  
Storage Temperature ◽  
Russet Burbank ◽  
Sprout Inhibitors

French fry quality related to specific gravity and solids content variation among potato strips within the same tuber

1975 ◽  
Vol 52 (3) ◽  
pp. 73-82 ◽  
Author(s):  
R. N. Sayre ◽  
M. Nonaka ◽  
M. L. Weaver
Keyword(s):  
Specific Gravity ◽  
French Fry ◽  
Content Variation ◽  
Solids Content

scholarly journals Performance of Commercially Available True Potato Seed Hybrids Grown from Tubers

HortScience ◽  
1997 ◽  
Vol 32 (4) ◽  
pp. 728-732 ◽  
Author(s):  
Stephen L. Love ◽  
Bruce K. Werner ◽  
Horia I. Groza ◽  
Asunta Thompson-Johns
Keyword(s):  
Specific Gravity ◽  
Plant Height ◽  
Potato Industry ◽  
Potato Seed ◽  
True Potato Seed ◽  
French Fry ◽  
Mean Values ◽  
The North ◽  
Fry Color ◽  
Foliar Traits

Nine commercially available true potato seed (TPS) hybrids were compared to four standard clonal cultivars with respect to mean and uniformity of foliar characteristics and tuber traits important to the North American potato industry. The TPS hybrids were planted using second vegetative generation tubers derived originally from botanical seed. Ten plants from each plot were individually evaluated for plant height, vine maturity, early blight symptoms, and verticillium wilt symptoms. Following harvest, yield was determined and the tubers were rated or measured for appearance, shape, specific gravity, and french fry color. The TPS hybrids had mean values for all tuber and foliar traits, except plant height, that were not significantly different from those of one or more of the cultivars; generally, values for the hybrids fell amid those of the cultivars. Two of the hybrids were taller on average than any of the four cultivars. In contrast to the means, trait uniformity of the TPS hybrids was consistently less than for the cultivars. For all foliar traits, except plant height, the TPS hybrids were substantially less uniform than the standard cultivars. For specific gravity and french fry color, two important processing quality traits, the hybrids tended to be less uniform than the cultivars; however, the difference was much less pronounced than for the foliar traits. Four of the hybrids were not significantly less uniform than one or more of the cultivars for french fry color and seven were not less uniform for specific gravity. For many market uses, the TPS hybrids appeared to have the tuber yield and quality characteristics needed to compete with standard clonally propagated cultivars.

scholarly journals Carnauba wax coating preserves the internal quality of commercial eggs during storage

2021 ◽  
Vol 42 (3) ◽  
pp. 1229-1244
Author(s):  
Cinthia Eyng ◽  
◽  
Kelly Cristina Nunes ◽  
Paula Toshimi Matumoto-Pintro ◽  
Ana Carolina Pelaes Vital ◽  
...  
Keyword(s):  
Weight Loss ◽  
Specific Gravity ◽  
Lipid Oxidation ◽  
Storage Temperature ◽  
Storage Period ◽  
Thiobarbituric Acid ◽  
Egg Yolk ◽  
Internal Quality ◽  
Carnauba Wax ◽  
Wax Coating

The objective of this study was to evaluate the internal quality and lipid oxidation of eggs coated with a carnauba wax-based product at different concentrations and stored for up to 28 days under two temperatures. For analysis of internal quality, the eggs were assigned to a completely randomized 3 x 4 factorial design (uncoated eggs (control); eggs coated with carnauba wax at 12% concentration (Aruá®); eggs coated with carnauba wax at 15% concentration (Aruá®); four storage periods - 7, 14, 21, and 28 days). Fifteen eggs from each treatment were evaluated in each storage period, with each egg representing one replicate, i.e., 300 eggs per storage temperature (10 and 25°C). Egg weight loss, yolk percent (%), albumen percent (%), Haugh unit, yolk index, and specific gravity were calculated. Lipid oxidation of the egg yolk was measured by thiobarbituric acid reactive substances (TBARS), using 10 eggs at time 0 (fresh) and 30 eggs in each storage period (7, 14, 21, and 28 days), in triplicate, under only one storage temperature (25°C). A total of five pools, consisting of two eggs each, were used for each treatment. Each pool was considered a replicate, and each treatment consisted of five replicates. The weight loss of the eggs stored at 10°C and 25°C during the storage period was, on average, 46.1% and 37.3% lower for the eggs coated with carnauba wax than in uncoated eggs, respectively. Overall, coated eggs, regardless the concentration of the wax (12 or 15%) had higher Haugh units, specific gravity, and yolk index than uncoated eggs, in both temperatures (10 and 25°C). Uncoated and coated eggs showed similar lipid oxidation values regardless of the storage period. On the other hand, eggs coated with solutions containing 15% wax showed less oxidation than eggs coated with 12% wax. The coating of commercial eggs with carnauba wax, both at concentrations of 12 and 15%, was effective in maintaining their internal quality during storage at both storage temperatures (10 and 25°C). Eggs stored at 25°C had lower quality traits during storage compared with eggs kept under refrigeration. Coating eggs with wax did not minimize the oxidative processes in the egg yolk.

The Effect of Storing Temperature and Duration on Urinary Hydration Markers

2017 ◽  
Vol 27 (1) ◽  
pp. 18-24 ◽  
Author(s):  
J.D. Adams ◽  
Stavros A. Kavouras ◽  
Evan C. Johnson ◽  
Lisa T. Jansen ◽  
Catalina Capitan-Jimenez ◽  
...  
Keyword(s):  
Specific Gravity ◽  
Urine Sample ◽  
Human Urine ◽  
Room Temperature ◽  
Storage Temperature ◽  
Urine Specific Gravity ◽  
Urinary Sediment ◽  
C Storage ◽  
Urine Color ◽  
Urine Specimens

The purpose of this investigation was to quantify the effects of storage temperature, duration, and the urinary sediment on urinary hydration markers. Thirty-six human urine samples were analyzed fresh and then the remaining sample was separated into 24 separate vials, six in each of the following four temperatures: 22 °C, 7 °C, -20 °C, and -80 °C. Two of each sample stored in any given temperature, were analyzed after 1, 2, and 7 days either following vortexing or centrifugation. Each urine sample was analyzed for osmolality (UOsm), urine specific gravity (USG), and urine color (UC). UOsm was stable at 22 °C, for 1 day (+5–9 mmol∙kg-1, p > .05) and at 7 °C, UOsm up to 7 days (+8–8 mmol∙kg-1, p > .05). At -20 and -80 °C, UOsm decreased after 1, 2, and 7 days (9–61 mmol∙kg-1, p < .05). Vortexing the sample before analysis further decreased only UOsm in the -20 °C and -80 °C storage. USG remained stable up to 7 days when samples were stored in 22 °C or 7 °C (p > .05) but declined significantly when stored in -20 °C, and -80 °C (p < .001). UC was not stable in any of the storing conditions for 1, 2, and 7 days. In conclusion, these data indicate that urine specimens analyzed for UOsm or USG remained stable in refrigerated (7 °C) environment for up to 7 days, and in room temperature for 1 day. However, freezing (-20 and -80 °C) samples significantly decreased the values of hydration markers.

Saginaw Gold: A yellow-fleshed potato cultivar with medium-high specific gravity and excellent chip and french fry quality after storage

1989 ◽  
Vol 66 (5) ◽  
pp. 303-313 ◽  
Author(s):  
R. Coffin ◽  
R. Chase ◽  
N. Thompson ◽  
G. Johnston ◽  
A. McKeown ◽  
...  
Keyword(s):  
Specific Gravity ◽  
Potato Cultivar ◽  
High Specific Gravity ◽  
French Fry

Valence electron spectroscopy of inhomogeneous media

1992 ◽  
Vol 50 (2) ◽  
pp. 1150-1151
Author(s):  
A. Howie ◽  
D.W. McComb
Keyword(s):  
Specific Gravity ◽  
Loss Function ◽  
Electron Spectroscopy ◽  
Valence Electron ◽  
Peak Height ◽  
Loss Functions ◽  
Loss Peak ◽  
High Energies ◽  
Valence Electron Density ◽  
Electron Microscopist

The bulk loss function Im(-l/ε (ω)), a well established tool for the interpretation of valence loss spectra, is being progressively adapted to the wide variety of inhomogeneous samples of interest to the electron microscopist. Proportionality between n, the local valence electron density, and ε-1 (Sellmeyer's equation) has sometimes been assumed but may not be valid even in homogeneous samples. Figs. 1 and 2 show the experimentally measured bulk loss functions for three pure silicates of different specific gravity ρ - quartz (ρ = 2.66), coesite (ρ = 2.93) and a zeolite (ρ = 1.79). Clearly, despite the substantial differences in density, the shift of the prominent loss peak is very small and far less than that predicted by scaling e for quartz with Sellmeyer's equation or even the somewhat smaller shift given by the Clausius-Mossotti (CM) relation which assumes proportionality between n (or ρ in this case) and (ε - 1)/(ε + 2). Both theories overestimate the rise in the peak height for coesite and underestimate the increase at high energies.

Float for Specific Gravity Determinations

1895 ◽  
Vol 39 (1011supp) ◽  
pp. 16162-16162
Author(s):  
T. Lohnstein
Keyword(s):  
Specific Gravity
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