Effect of moisture content of oil type sunflower seed on fungal growth and seed quality during storage

1984 ◽  
Vol 61 (4) ◽  
pp. 768-771 ◽  
Author(s):  
J. A. Robertson ◽  
G. W. Chapman ◽  
R. L. Wilson
Keyword(s):  
Moisture Content ◽  
Sunflower Seed ◽  
Seed Quality ◽  
Fungal Growth ◽  
Effect Of Moisture ◽  
Oil Type

Effect of Moisture Content on Melilotus suaveolens Seed Quality During Ultra-drying Storage

2011 ◽  
Vol 18 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Yan LIU ◽  
Guangquan LIU ◽  
Qingmei LI ◽  
Xinfang DUAN ◽  
Longyu HOU
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Effect Of Moisture

Microfloral infection and quality deterioration of sunflower seeds as affected by temperature and moisture content during storage and the suitability of the seeds for insect or mite infestation

1993 ◽  
Vol 73 (1) ◽  
pp. 303-313 ◽  
Author(s):  
N. D. G. White ◽  
D. S. Jayas
Keyword(s):  
Fatty Acids ◽  
Seed Germination ◽  
Moisture Content ◽  
Free Fatty Acids ◽  
Sunflower Seed ◽  
Fungal Growth ◽  
Seed Storage ◽  
Fungal Species ◽  
Sunflower Seeds ◽  
Ground Seed

Sunflower seed, cultivar Interstate 7111, was stored at 10, 20, 30, and 40 °C and 35, 45, 55, and 75% RH for up to 12 mo. At 75% RH fungal growth was extensive and free fatty acids (FFA) increased rapidly under all temperature regimes. Based on a threefold increase in FFA (1.5%) seed can be stored for 12 mo: at 6% moisture content (MC) and 30 °C; 7% MC and 20 °C; or 8% MC and 10 °C. Seed germination remained above 80% for 12 mo at 10 and 20 °C and 35, 45, and 55% RH; it declined to 70% at 30 °C and 45% RH, but at 55% RH it fell to 30% at 6 mo and 0% at 12 mo. Seed germination decreased rapidly at 40 °C. The incidence of microfloral infection by Penicillium spp. and Aspergillus spp. directly affected increased FFA, decreased germination, and infection was frequent at > 75% RH and different fungal species predominated at different temperatures. Eight species of stored-product beetles and one species of mite were placed on whole sunflower seed, ground seed, shells, or seed meat. Only Oryzaephilus surinamensis, O. mercator, Tribolium castaneum, and T. confusum multiplied appreciably in 2 mo, mainly on ground seed or seed meat. The Oryzaephilus spp. multiplied as much on sunflower seed as on ground wheat controls. Infestation of sunflower seeds by these pests is likely. Key words: Sunflower seed, storage, free fatty acids, germination, fungi, Insecta, Acari

scholarly journals Effect of Moisture Content on the Processing and Mechanical Properties of a Biodegradable Polyester

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1616
Author(s):  
Vincenzo Titone ◽  
Antonio Correnti ◽  
Francesco Paolo La Mantia
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Moisture Content ◽  
Mechanical Testing ◽  
Hydrolytic Degradation ◽  
Slight Reduction ◽  
Biodegradable Polyester ◽  
Molding Process ◽  
Elongation At Break ◽  
Effect Of Moisture

This work is focused on the influence of moisture content on the processing and mechanical properties of a biodegradable polyester used for applications in injection molding. The pellets of the biodegradable polyester were exposed under different relative humidity conditions at a constant temperature before being compression molded. The compression-molded specimens were again placed under the above conditions before the mechanical testing. With all these samples, it is possible to determine the effect of moisture content on the processing and mechanical properties separately, as well as the combined effect of moisture content on the mechanical properties. The results obtained showed that the amount of absorbed water—both before processing and before mechanical testing—causes an increase in elongation at break and a slight reduction of the elastic modulus and tensile strength. These changes have been associated with possible hydrolytic degradation during the compression molding process and, in particular, with the plasticizing action of the moisture absorbed by the specimens.

Structural Changes on Charring Woods of Dichrostachys and Salix from Southern Africa: The Effect of Moisture Content

IAWA Journal ◽  
1986 ◽  
Vol 7 (3) ◽  
pp. 243-250 ◽  
Author(s):  
Juliet Prior ◽  
K. L. Alvin
Keyword(s):  
Moisture Content ◽  
Southern Africa ◽  
Structural Changes ◽  
Initial Increase ◽  
Dichrostachys Cinerea ◽  
Chemical Changes ◽  
Structural Alterations ◽  
Wood Pyrolysis ◽  
Effect Of Moisture ◽  
Physical And Chemical

Air-dried and saturated cubes of fully developed wood of Dichrostachys cinerea (Leguminosae) and Salix subserrata (Salicaceae) were charred for 60 minutes at 400°C. An initial increase in moisture content caused few structural alterations in Salix but in Dichrostachys it resulted in considerable ray distension and massive deformation of non-gelatinous fibres. An attempt is made to correlate these observations with the physical and chemical changes known to occur during wood pyrolysis.

The effect of moisture content in fibre laser cutting of pine wood

2011 ◽  
Vol 49 (9-10) ◽  
pp. 1139-1152 ◽  
Author(s):  
Juan Carlos Hernández-Castañeda ◽  
Huseyin Kursad Sezer ◽  
Lin Li
Keyword(s):  
Moisture Content ◽  
Laser Cutting ◽  
Fibre Laser ◽  
Pine Wood ◽  
Effect Of Moisture
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