Modeling the growth of Listeria monocytogenes on cut cantaloupe, honeydew and watermelon.
Abstract
A recent outbreak linked to whole cantaloupes underscores the importance of understanding growth kinetics of Listeria monocytogenes in cut melons at different temperatures. Whole cantaloupe, watermelon, and honeydew purchased from a local supermarket were cut into 10 ± 1 g cubes. A four-strain cocktail of L. monocytogenes from food related outbreaks was used to inoculate fruit, resulting in ∼10(3) CFU/10 g. Samples were stored at 4, 10, 15, 20, or 25 °C and L. monocytogenes were enumerated at appropriate time intervals. The square root model was used to describe L. monocytogenes growt...
Source: Food Microbiology - December 7, 2013 Category: Food Science Authors: Danyluk MD, Friedrich LM, Schaffner DW Tags: Food Microbiol Source Type: research
Tainted Melons Bring Harsh Penalties for Colorado Farmers
Last week two brothers plead guilty to federal criminal charges related to the United States’s worst foodborne illness outbreak in the past 25 years. The unusual charges indicate that the U.S. Food and Drug Administration (FDA) is gearing up for an era of tighter food safety regulations and more serious consequences. [More] (Source: Scientific American - Official RSS Feed)
Source: Scientific American - Official RSS Feed - November 6, 2013 Category: Science Tags: Health,Society & Policy,Biology Source Type: research
Development of SSR markers by next-generation sequencing of Korean landraces of chamoe (Cucumis melo var. makuwa).
This study establishes a highly efficient strategy for developing SSR markers from preliminary Illumina assemblies of AT-rich genomes.
PMID: 24096890 [PubMed - as supplied by publisher] (Source: Molecular Biology Reports)
Source: Molecular Biology Reports - October 5, 2013 Category: Molecular Biology Authors: Park I, Kim J, Lee J, Kim S, Cho O, Yang K, Ahn J, Nahm S, Kim H Tags: Mol Biol Rep Source Type: research
The Mind-Boggling Math of Migratory Beekeeping
Every year around Valentine's Day millions of almond trees begin to bloom in an expanse of more than 800,000 acres stretching from Sacramento to Los Angeles. In the following weeks more than 30 different varieties of almond trees unfurl five-petaled white and pink flowers at different times. At the center of each flower a cluster of thin pollen-tipped stalks known as stamens surrounds a pollen-catching stigma. In order to produce nuts, an almond tree's flowers must receive pollen grains from a different type of almond tree. Mature flowers on any given tree are only receptive to pollination for five days. If almond ...
Source: Scientific American - Official RSS Feed - September 11, 2013 Category: Science Tags: More Science,Evolution,More Science,Everyday Science Source Type: research
Hydrogels And Aerogels From Melons
Chemists transform watermelon, promising carbonaceous materials (Source: NanoFocus)
Source: NanoFocus - April 22, 2013 Category: Nanotechnology Authors: Bethany Halford Source Type: research
SNP genotyping in melons: genetic variation, population structure, and linkage disequilibrium.
Abstract
Novel sequencing technologies were recently used to generate sequences from multiple melon (Cucumis melo L.) genotypes, enabling the in silico identification of large single nucleotide polymorphism (SNP) collections. In order to optimize the use of these markers, SNP validation and large-scale genotyping are necessary. In this paper, we present the first validated design for a genotyping array with 768 SNPs that are evenly distributed throughout the melon genome. This customized Illumina GoldenGate assay was used to genotype a collection of 74 accessions, representing most of the botanical groups ...
Source: TAG. Theoretical and Applied Genetics - February 5, 2013 Category: Genetics & Stem Cells Authors: Esteras C, Formisano G, Roig C, Díaz A, Blanca J, Garcia-Mas J, Gómez-Guillamón ML, López-Sesé AI, Lázaro A, Monforte AJ, Picó B Tags: Theor Appl Genet Source Type: research
