Potato quality XXVI: Darkening of frozen potato products resulting from exposure to ammonia vapor

1965 ◽  
Vol 42 (5) ◽  
pp. 127-133
Author(s):  
C. O. Davis ◽  
Ora Smith
Keyword(s):  
Ammonia Vapor ◽  
Potato Quality ◽  
Potato Products

Potato quality XIV. Prevention of graying in dehydrated potato products

1962 ◽  
Vol 39 (4) ◽  
pp. 135-148 ◽  
Author(s):  
Ora Smith ◽  
Carl O. Davis
Keyword(s):  
Potato Quality ◽  
Potato Products

scholarly journals Investigation of the Antifungal and Anti-Aflatoxigenic Potential of Plant-Based Essential Oils against Aspergillus flavus in Peanuts

2020 ◽  
Vol 6 (4) ◽  
pp. 383
Author(s):  
Premila Narayana Achar ◽  
Pham Quyen ◽  
Emmanuel C. Adukwu ◽  
Abhishek Sharma ◽  
Huggins Zephaniah Msimanga ◽  
...  
Keyword(s):  
Essential Oils ◽  
Aspergillus Flavus ◽  
High Performance ◽  
Opportunistic Infections ◽  
Aflatoxin Production ◽  
The United States ◽  
Microscopy Study ◽  
Aspergillus Species ◽  
Gas Chromatography Mass Spectrometry ◽  
Ammonia Vapor

Aspergillus species are known to cause damage to food crops and are associated with opportunistic infections in humans. In the United States, significant losses have been reported in peanut production due to contamination caused by the Aspergillus species. This study evaluated the antifungal effect and anti-aflatoxin activity of selected plant-based essential oils (EOs) against Aspergillus flavus in contaminated peanuts, Tifguard, runner type variety. All fifteen essential oils, tested by the poisoned food technique, inhibited the growth of A. flavus at concentrations ranging between 125 and 4000 ppm. The most effective oils with total clearance of the A. flavus on agar were clove (500 ppm), thyme (1000 ppm), lemongrass, and cinnamon (2000 ppm) EOs. The gas chromatography-mass spectrometry (GC-MS) analysis of clove EO revealed eugenol (83.25%) as a major bioactive constituent. An electron microscopy study revealed that clove EO at 500 ppm caused noticeable morphological and ultrastructural alterations of the somatic and reproductive structures. Using both the ammonia vapor (AV) and coconut milk agar (CMA) methods, we not only detected the presence of an aflatoxigenic form of A. flavus in our contaminated peanuts, but we also observed that aflatoxin production was inhibited by clove EO at concentrations between 500 and 2000 ppm. In addition, we established a correlation between the concentration of clove EO and AFB1 production by reverse-phase high-performance liquid chromatography (HPLC). We demonstrate in our study that clove oil could be a promising natural fungicide for an effective bio-control, non-toxic bio-preservative, and an eco-friendly alternative to synthetic additives against A. flavus in Georgia peanuts.

Phenotypic properties and genotyping analysis of Bacillus cereus group isolates from dairy and potato products

LWT ◽  
2021 ◽  
Vol 140 ◽  
pp. 110853
Author(s):  
Yiying Huang ◽  
Steve H. Flint ◽  
Shubo Yu ◽  
Yu Ding ◽  
Jon S. Palmer
Keyword(s):  
Bacillus Cereus ◽  
Bacillus Cereus Group ◽  
Phenotypic Properties ◽  
Potato Products

Sol–Gel Based Hydrophobic Antireflective Coatings on Organic Substrates: A Detailed Investigation of Ammonia Vapor Treatment (AVT)

2014 ◽  
Vol 26 (5) ◽  
pp. 1822-1833 ◽  
Author(s):  
Mickael Boudot ◽  
Vincent Gaud ◽  
Mélanie Louarn ◽  
Mohamed Selmane ◽  
David Grosso
Keyword(s):  
Sol Gel ◽  
Organic Substrates ◽  
Ammonia Vapor ◽  
Antireflective Coatings ◽  
Vapor Treatment

Retention of Some Water-Soluble Vitamins During Home Preparation of Commercially Frozen Potato Products

1981 ◽  
Vol 46 (6) ◽  
pp. 1697-1700 ◽  
Author(s):  
JORG AUGUSTIN ◽  
GAIL I. MAROUSEK ◽  
W. E. ARTZ ◽  
B. G. SWANSON
Keyword(s):  
Water Soluble ◽  
Potato Products

scholarly journals The North/South Ireland Food Consumption Survey: mineral intakes in 18–64-year-old adults

2001 ◽  
Vol 4 (5a) ◽  
pp. 1081-1088 ◽  
Author(s):  
EM Hannon ◽  
M Kiely ◽  
KE Harrington ◽  
PJ Robson ◽  
JJ Strain ◽  
...  
Keyword(s):  
Food Consumption ◽  
Dairy Products ◽  
Meat Products ◽  
Nutritional Supplements ◽  
Old Adults ◽  
Food Consumption Survey ◽  
Excessive Intake ◽  
Daily Intakes ◽  
Potato Products ◽  
Cu And Zn

AbstractObjectiveTo measure mineral intakes and the contribution of different food groups to mineral intakes in adults aged 18–64 years in Ireland. Intakes are reported for Ca, Mg, P, Fe, Cu and Zn. The adequacy of mineral intakes in the population and the risk of occurrence of excessive intakes are also assessed.DesignFood consumption was estimated using a 7-day food diary for a representative sample (n = 1379; 662 men, 717 women) of 18–64-year-old adults in the Republic of Ireland and Northern Ireland selected randomly from the electoral register. Mineral intakes (Ca, Mg, P, Fe, Cu and Zn) were estimated using tables of food composition.ResultsMean nutrient density of intakes was higher for women than men for Ca and Fe and increased with age for all minerals, except Ca for men and Fe for women. Meat and meat products were the major contributor to mean daily intakes of Zn (38%), P (23%), Fe (18%), Cu (15%) and Mg (13%); dairy products (milk, yoghurt and cheese) to Ca (44%), P (22%), Zn (14%) and Mg (11%); bread and rolls to Fe (21%), Cu (18%), Ca and Mg (17%), Zn (13%) and P (12%); potatoes and potato products to Cu (16%), Mg (14%) and Fe (10%); and breakfast cereals to Fe (13%). In women of all ages nutritional supplements contributed 7.6%, 4.4%, 3.6% and 2.2% of mean daily intake of Fe, Zn, Cu and Ca, respectively, while in men of all ages, nutritional supplements contributed 2.7%, 2.3%, 1.7% and 0.6%, respectively, to mean daily intakes of Fe, Zn, Cu and Ca. Adequacy of minerals intakes in population groups was assessed using the average requirement (AR) as a cut-off value. A significant prevalence of intakes below the AR was observed for Ca, Fe, Cu and Zn but not P. A higher proportion of women than men had intakes below the AR for all minerals. Almost 50% of 18–50-year-old females had intakes below the AR for Fe, while 23%, 23% and 15% of women of all ages had intakes below the AR for Ca, Cu and Zn, respectively. For men of all ages, 11%, 8% and 13% had intakes below the AR for Ca, Cu and Zn, respectively. There appears to be little risk of excessive intake of Ca, Mg, P, Cu or Zn in any age/sex category. However, 2.9% of women of all ages had intakes above the tolerable upper intake level for Fe (45 mg) due to supplement use.ConclusionAlmost 50% of women aged 18–50 years had Fe intakes below the AR and relatively high proportions of women of all ages had intakes below the AR for Ca, Cu and Zn. With the possible exception of iron intake from supplements in women, there appears to be little risk of excessive intake of minerals in the adult population. Meat and meat products, dairy products (milk, cheese and yoghurt), Keywords bread and rolls, potatoes and potato products and breakfast cereals are important Mineral intake sources of minerals; nutritional supplements make only a small contribution to Ireland mineral intakes in the population as a whole but may contribute significantly to Food consumption survey intakes among supplement users.

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