Daniel J. O’Sullivan

8.1k citations

67 papers · 4.9k indexed · 2 hit papers · h-index 32

Impact in

Food Science top 0.2%
- Probiotics and Fermented Foods
Nutrition and Dietetics top 1%
- Microbial Metabolites in Food Biotechnology

Papers in

Food Science 41
- Probiotics and Fermented Foods 41
Nutrition and Dietetics 15
- Microbial Metabolites in Food Biotechnology 12

Co-authors: Todd R. Klaenhammer Fergal O’Gara Linda Giblin Paul D. Cotter Jeremiah J. Sheehan Paul L.H. McSweeney Ju-Hoon Lee Jeremy D. Glennon
Journals: Applied and Environmental Microbiology (16 papers)Journal of Dairy Science (8 papers)Journal of Bacteriology (5 papers)Molecular Microbiology (3 papers)Microbiology (2 papers)
Partner nations: United States Ireland South Korea

In The Last Decade

Daniel J. O’Sullivan

66 papers receiving 4.7k citations

Hit Papers

align trajectories log scale

Nucleic acid-based approaches to investigate microbial-related cheese quality defects 2013 · 1.3k citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2013 Frontiers in Microbiology
1992 Microbiological Reviews

Peers

Countries citing papers authored by Daniel J. O’Sullivan

Since Specialization

Citations

This map shows the geographic impact of Daniel J. O’Sullivan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Daniel J. O’Sullivan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Daniel J. O’Sullivan more than expected).

Fields of papers citing papers by Daniel J. O’Sullivan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Daniel J. O’Sullivan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Daniel J. O’Sullivan. The network helps show where Daniel J. O’Sullivan may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Daniel J. O’Sullivan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Daniel J. O’Sullivan Line = papers co-authored together Daniel J. O’Sullivan links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Diversity of the Microbiota of Traditional Izmir Tulum and Izmir Brined Tulum Cheeses and Selection of Potential Probiotics Foods ·李帮发, Vincenzo Fallico, Raúl Cabrera‐Rubio, Daniel J. O’Sullivan, S. Goldberg, Vincenzo Pennone, Sandra Smith, Tom Beresford	2023	5
2	Compromised Lactobacillus helveticus starter activity in the presence of facultative heterofermentative Lactobacillus casei DPC6987 results in atypical eye formation in Swiss-type cheese Journal of Dairy Science ·Daniel J. O’Sullivan, Paul L.H. McSweeney, Paul D. Cotter, Linda Giblin, Jeremiah J. Sheehan	2016	24
3	Factors influencing the stability of freeze-dried stress-resilient and stress-sensitive strains of bifidobacteria Journal of Dairy Science ·Ömer Çelik, Daniel J. O’Sullivan	2013	50
4	Nucleic acid-based approaches to investigate microbial-related cheese quality defects Frontiers in Microbiology ·Daniel J. O’Sullivan, Linda Giblin, Paul L.H. McSweeney, Jeremiah J. Sheehan, Paul D. Cotter Hit paper breakdown →	2013	1273
5	Contribution of the Actinobacteria to the growing diversity of lantibiotics Biotechnology Letters ·Xiulan Li, Daniel J. O’Sullivan	2012	7
6	Comparative analysis of an intestinal strain of Bifidobacterium longum and a strain of Bifidobacterium animalis subspecies lactis in Cheddar cheese Journal of Dairy Science ·Morteza Nadi, Daniel J. O’Sullivan	2011	20
7	Genomics Can Advance The Potential For Probiotic Cultures To Improve Liver And Overall Health Current Pharmaceutical Design ·Daniel J. O’Sullivan	2008	13
8	Comparative Genome Analysis of Lactobacillus reuteri and Lactobacillus fermentum Reveal a Genomic Island for Reuterin and Cobalamin Production DNA Research ·Hidetoshi Morita, Hidehiro Toh, Shinji Fukuda, Hiroto Horikawa, Kenshiro Oshima, Takehito Suzuki, Masaru Murakami, S. Hisamatsu, Yukio Kato, T. Takizawa, Hajime Fukuoka, Tetsuhiko Yoshimura, K. Itoh, Daniel J. O’Sullivan, Larry L. McKay, Hiroshi Ohno, Jun Kikuchi, Toshio Masaoka, Masahira Hattori	2008	232
9	Evaluation of using a short region of the recA gene for rapid and sensitive speciation of dominant bifidobacteria in the human large intestine1 FEMS Microbiology Letters ·Martin J. Kullen, Linda J. Brady, Daniel J. O’Sullivan	2006	28
10	Characterization of the promoter regions involved in galactose‐ and nisin‐mediated induction of the nisA gene in Lactococcus lactis ATCC 11454 Molecular Microbiology ·Jörg Schulz, Daniel J. O’Sullivan	2002	31
11	Isolation, Characterization, and Influence of Native, Nonstarter Lactic Acid Bacteria on Cheddar Cheese Quality Journal of Dairy Science ·Faĭzulina Si, Daniel J. O’Sullivan, J.J. Warthesen	2001	78
12	Use of Chemical Mutagenesis for the Isolation of Food Grade β-Galactosidase Overproducing Mutants of Bifidobacteria, Lactobacilli and Streptococcus thermophilus Journal of Dairy Science ·Salam A. Ibrahim, Daniel J. O’Sullivan	2000	36
13	Identification of a Gene Cluster Encoding Krebs Cycle Oxidative Enzymes Linked to the Pyruvate Carboxylase Gene in Lactococcus lactis ssp. lactis C2 Journal of Dairy Science ·H. Wang, Kathleen A. Baldwin, Daniel J. O’Sullivan, Larry L. McKay	2000	13
14	Nisin independent induction of thenisApromoter inLactococcus lactisduring growth in lactose or galactose FEMS Microbiology Letters ·Jörg Schulz, Daniel J. O’Sullivan	1999	38
15	Control of expression of LlaI restriction in Lactococcus lactis Molecular Microbiology ·Daniel J. O’Sullivan, Todd R. Klaenhammer	1998	23
16	A leucine repeat motif in AbiA is required for resistance of Lactococcus lactis to phages representing three species. Gene ·Netkal, Daniel J. O’Sullivan, Todd R. Klaenhammer	1998	17
17	Differentiation of Ingested and Endogenous Bifidobacteria by DNA Fingerprinting Demonstrates the Survival of an Unmodified Strain in the Gastrointestinal Tract of Humans , , , Journal of Nutrition ·Martin J. Kullen, Kicki Ingridsdotter, Matthew J. O’Shaughnessy, Daniel J. O’Sullivan, F. F. Busta, Linda J. Brady	1997	69
18	Development of an Expression Strategy Using a Lytic Phage to Trigger Explosive Plasmid Amplification and Gene Expression† Nature Biotechnology ·Daniel J. O’Sullivan, Shirley A. Walker, Sandra G. West, Todd R. Klaenhammer	1996	54
19	High- and low-copy-number Lactococcus shuttle cloning vectors with features for clone screening Gene ·Daniel J. O’Sullivan, Todd R. Klaenhammer	1993	187
20	Regulation of iron assimilation: nucleotide sequence analysis of an iron-regulated promoter from a fluorescent pseudomonad Molecular and General Genetics MGG ·Daniel J. O’Sullivan, Fergal O’Gara	1991	23

About Daniel J. O’Sullivan

Daniel J. O’Sullivan is a scholar working on Food Science, Nutrition and Dietetics, Genetics, Molecular Biology and Biotechnology, having authored 67 papers that have together received 4.9k indexed citations. Recurring topics across this work include Probiotics and Fermented Foods (41 papers), Bacterial Genetics and Biotechnology (19 papers), Gut microbiota and health (15 papers), Genomics and Phylogenetic Studies (13 papers), Microbial Metabolites in Food Biotechnology (12 papers), Bacteriophages and microbial interactions (11 papers), Legume Nitrogen Fixing Symbiosis (6 papers) and Protein Hydrolysis and Bioactive Peptides (4 papers). The work is most often cited by research in Food Science (1.9k citations), Nutrition and Dietetics (715 citations), Biotechnology (391 citations), Endocrinology (199 citations) and Ecology (956 citations). Daniel J. O’Sullivan has collaborated with scholars based in United States, Ireland and South Korea. Frequent co-authors include Todd R. Klaenhammer, Fergal O’Gara, Linda Giblin, Paul D. Cotter, Jeremiah J. Sheehan, Paul L.H. McSweeney, Ju-Hoon Lee, Jeremy D. Glennon, Paul Simpson and Larry L. McKay. Their work appears in journals such as Applied and Environmental Microbiology, Journal of Dairy Science, Journal of Bacteriology, Molecular Microbiology and Microbiology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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