1,724,880 research outputs found
Southern Pacific (SP) 3298
A photograph print showing the Southern Pacific (SP) 3298, 2-8-2, Portland, OR.
Astronomische Nachrichten, nos 3298-3304
R. Astronomische Nachrichten, nos 3298-3304. In: Bulletin astronomique, tome 12, 1895. pp. 442-448
Membrane lipid composition of Carnobacterium maltaromaticum CNCM I-3298, a highly cryoresistant lactic acid bacterium
The growing consumption of fermented products has led to an increasing demand for lactic acid bacteria (LAB), especially for LAB tolerant to freezing/thawing conditions. Carnobacterium maltaromaticum is a psychrotrophic and freeze-thawing resistant lactic acid bacterium. The membrane is the primary site of damage during the cryo-preservation process and requires modulation to improve cryoresistance. However, knowledge about the membrane structure of this LAB genus is limited. We presented here the first study of the membrane lipid composition of C. maltaromaticum CNCM I-3298 including the polar heads and the fatty acid compositions of each lipid family (neutral lipids, glycolipids, phospholipids). The strain CNCM I-3298 is principally composed of glycolipids (32%) and phospholipids (55%). About 95% of glycolipids are dihexaosyldiglyceride while less than 5% are monohexaosyldiglyceride. The disaccharide chain of dihexaosyldiglyceride is composed of α-Gal(1-2)-α-Glc chain, evidenced for the first time in a LAB strain other than lactobacillus strains. Phosphatidylglycerol is the main phospholipid (94%). All polar lipids are exceptionally rich in C18:1 (from 70 to 80%). Regarding the fatty acid composition, C. maltaromaticum CNCM I-3298 is an atypical bacterium within the genus Carnobacterium due to its high C18:1 proportion but resemble the other Carnobacterium strains as they mostly do not contain cyclic fatty acids
Mandurama photograph collection [3298] [picture] /
Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-an8526486-3298
IO Islamic 3298. Akbarnâma, History of the Emperor Akbar
IO Islamic 3298. Akbarnâma, History of the Emperor Akbar</p
Dacrymenone and VM 3298-2 - New antibiotics with antibacterial and antifungal activity
Two new antibiotic metabolites, dacrymenone (1) and VM 3298-2 (2), were isolated from fermentations of a Dacrymyces sp., and their structures were determined by spectroscopic techniques. Dacrymenone (1) is a new eremophilane sesquiterpenoid while VM 3298-2 (2) is a bis-enol ether between methyl pyruvate and 4,6-dihydroxycyclohexan-1,3-dione. Dacrymenone (1) shows weak antibacterial and antifungal activity while VM 3298-2 (2) exhibits cytotoxic and antifungal activities
Dacrymenone and VM 3298-2 - New antibiotics with antibacterial and antifungal activity
Two new antibiotic metabolites, dacrymenone (1) and VM 3298-2 (2), were isolated from fermentations of a Dacrymyces sp., and their structures were determined by spectroscopic techniques. Dacrymenone (1) is a new eremophilane sesquiterpenoid while VM 3298-2 (2) is a bis-enol ether between methyl pyruvate and 4,6-dihydroxycyclohexan-1,3-dione. Dacrymenone (1) shows weak antibacterial and antifungal activity while VM 3298-2 (2) exhibits cytotoxic and antifungal activities
Membrane lipid composition of Carnobacterium maltaromaticum CNCM I-3298, a highly cryoresistant lactic bacterium
This dataset concerns the fine lipid analysis of a lactic acid bacterium (Carnobacterium maltaromaticum CNCM I-3298) produced at its optimal activity. The dataset includes the chromatography analysis (TLC, HPLC, GC, SFC) of total lipids of C. maltaromaticum CNCM I-3298, the MS and NMR studies of the structures of neutral lipids, phospholipids and glycolipids of C. maltaromaticum CNCM I-3298 and the statistical analysis of the fatty acid composition of bacteria based on available data in the literature for the period from 1995 to 2022
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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