Effect of short-term storage on phenolic content,o-diphenolase and peroxidase activities of cut yam tubers (Dioscorea sp)

1992 ◽  
Vol 60 (3) ◽  
pp. 309-312 ◽  
Author(s):  
Helen N. Asemota ◽  
Max A. Wellington ◽  
Adewale A. Odutuga ◽  
Mohammed H. Ahmad
Keyword(s):  
Phenolic Content ◽  
Short Term ◽  
Short Term Storage ◽  
Term Storage

scholarly journals The effect of short-term storage temperature on the key headspace volatile compounds observed in Canadian faba bean flour

2021 ◽  
pp. 108201322199884
Author(s):  
Rami Akkad ◽  
Ereddad Kharraz ◽  
Jay Han ◽  
James D House ◽  
Jonathan M Curtis
Keyword(s):  
Fatty Acids ◽  
Volatile Compounds ◽  
Room Temperature ◽  
Unsaturated Fatty Acids ◽  
Solid Phase ◽  
Short Term ◽  
Bean Flour ◽  
Odour Activity Value ◽  
Short Term Storage ◽  
Term Storage

The odour emitted from the high-tannin fab bean flour ( Vicia faba var. minor), was characterized by headspace solid-phase microextraction/gas chromatography-mass spectrometry (HS-SPME/GC–MS). The relative odour activity value (ROAV) was used to monitor the changes in key volatile compounds in the flour during short-term storage at different temperature conditions. The key flavour compounds of freshly milled flour included hexanal, octanal, nonanal, decanal, 3-methylbutanal, phenyl acetaldehyde, (E)-2-nonenal, 1-hexanol, phenyl ethyl alcohol, 1-octen-3-ol, β-linalool, acetic acid, octanoic acid, and 3-methylbutyric acid; these are oxidative degradation products of unsaturated fatty acids and amino acids. Despite the low lipid content of faba beans, the abundances of aldehydes arising during room temperature storage greatly contributed to the flavour of the flour due to their very low odour thresholds. Two of the key volatiles responsible for beany flavour in flour (hexanal, nonanal) increased greatly after 2 weeks of storage at room temperature or under refrigerated conditions. These volatile oxidation products may arise as a result of enzymatic activity on unsaturated fatty acids, and was seen to be arrested by freezing the flour.

Fractionation of Fresh Wastewater and Solubility of Phosphorus in Short-Term Storage

2006 ◽  
Vol 41 (6) ◽  
pp. 1183-1188 ◽  
Author(s):  
JARMO SALLANKO ◽  
MIKKO HINKKANEN ◽  
JARKKO OKKONEN
Keyword(s):  
Short Term ◽  
Short Term Storage ◽  
Term Storage

Short-term storage of perch (Perca fluviatilis L.) milt under cooling conditions

2013 ◽  
Vol 13 ◽  
pp. 39 ◽  
Author(s):  
Beata Sarosiek ◽  
Beata I. Cejko ◽  
Dariusz Kucharczyk ◽  
Daniel Żarski ◽  
Sylwia Judycka ◽  
...  
Keyword(s):  
Perca Fluviatilis ◽  
Short Term ◽  
Cooling Conditions ◽  
Perch Perca Fluviatilis ◽  
Short Term Storage ◽  
Term Storage

scholarly journals Impact of Thermotherapy and Short-Term Storage on Quercus robur L. Acorn Mycobiota and Germination

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 528
Author(s):  
Jelena Kranjec Orlović ◽  
Damir Drvodelić ◽  
Marko Vukelić ◽  
Matea Rukavina ◽  
Danko Diminić ◽  
...  
Keyword(s):  
Natural Regeneration ◽  
Fungal Diversity ◽  
Quercus Robur ◽  
Negative Impact ◽  
Storage Conditions ◽  
Short Term ◽  
Isolation Frequency ◽  
Short Term Storage ◽  
Penicillium Spp ◽  
Term Storage

When natural regeneration of Quercus robur stands is hampered by an insufficient acorn yield, human assisted sowing of acorns collected in non-affected stands and stored for some period of time is performed. To inhibit the development of fungi and acorn deterioration during storage, thermotherapy is usually applied by submerging acorns for 2.5 h in water heated to 41 °C. This research aimed to test the effect of four thermotherapy treatments of different durations and/or applied temperatures as well as short-term storage at −1 °C or 3 °C on acorn internal mycobiota and germination. Fungal presence in cotyledons was analyzed in 450 acorns by isolation of mycelia on artificial media, followed by a DNA-based identification. Germination of 2000 acorns was monitored in an open field trial. Thermotherapy significantly decreased fungal diversity, while storage at 3 °C increased the isolation frequency of several fungi, mainly Penicillium spp. The most frequently isolated fungi did not show a negative impact on acorn germination after short-term storage. The study confirmed the efficiency of thermotherapy in the eradication of a part of acorn internal mycobiota, but also its effect on the proliferation of fast-colonizing fungi during storage. However, the latter showed to be more stimulated by storage conditions, specifically by storage at 3 °C.

scholarly journals Concise Review: Considering Optimal Temperature for Short-Term Storage of Epithelial Cells

2021 ◽  
Vol 8 ◽  
Author(s):  
Ayyad Zartasht Khan ◽  
Tor Paaske Utheim ◽  
Catherine Joan Jackson ◽  
Kim Alexander Tønseth ◽  
Jon Roger Eidet
Keyword(s):  
Epithelial Cells ◽  
Storage Temperature ◽  
Freezing Point ◽  
Retinal Pigment ◽  
Cell Types ◽  
Retinal Pigment Epithelial Cells ◽  
Storage Medium ◽  
Short Term ◽  
Short Term Storage ◽  
Term Storage

Transplantation of novel tissue-engineered products using cultured epithelial cells is gaining significant interest. While such treatments can readily be provided at centralized medical centers, delivery to patients at geographically remote locations requires the establishment of suitable storage protocols. One important aspect of storage technology is temperature. This paper reviews storage temperature for above-freezing point storage of human epithelial cells for regenerative medicine purposes. The literature search uncovered publications on epidermal cells, retinal pigment epithelial cells, conjunctival epithelial cells, corneal/limbal epithelial cells, oral keratinocytes, and seminiferous epithelial cells. The following general patterns were noted: (1) Several studies across different cell types inclined toward 4 and 16°C being suitable short-term storage temperatures. Correspondingly, almost all studies investigating 37°C concluded that this storage temperature was suboptimal. (2) Cell death typically escalates rapidly following 7–10 days of storage. (3) The importance of the type of storage medium and its composition was highlighted by some of the studies; however, the relative importance of storage medium vs. storage temperature has not been investigated systematically. Although a direct comparison between the included investigations is not reasonable due to differences in cell types, storage media, and storage duration, this review provides an overview, summarizing the work carried out on each cell type during the past two decades.

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