J.R. Nunn

549 total citations
24 papers, 418 citations indexed

About

J.R. Nunn is a scholar working on Aquatic Science, Oceanography and Food Science. According to data from OpenAlex, J.R. Nunn has authored 24 papers receiving a total of 418 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Aquatic Science, 7 papers in Oceanography and 7 papers in Food Science. Recurrent topics in J.R. Nunn's work include Seaweed-derived Bioactive Compounds (12 papers), Marine and coastal plant biology (7 papers) and Polysaccharides and Plant Cell Walls (6 papers). J.R. Nunn is often cited by papers focused on Seaweed-derived Bioactive Compounds (12 papers), Marine and coastal plant biology (7 papers) and Polysaccharides and Plant Cell Walls (6 papers). J.R. Nunn collaborates with scholars based in South Africa, United Kingdom and Canada. J.R. Nunn's co-authors include Haralambos Parolis, I. Russell, Alistair M. Stephen, W. A. Roach, Alexander J. Charlson, Donald M. Leek, Edwin H. Merrifield, José Luis Di Fábio, Guy G.S. Dutton and J. S. Harington and has published in prestigious journals such as Nature, Journal of the American Chemical Society and Journal of the Science of Food and Agriculture.

In The Last Decade

J.R. Nunn

24 papers receiving 355 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
J.R. Nunn South Africa	15	184	135	108	98	94	24	418
A. N. O'Neill Romania	11	106 0.6×	61 0.5×	70 0.6×	37 0.4×	95 1.0×	12	340
C. J. Barwell United Kingdom	13	109 0.6×	47 0.3×	48 0.4×	45 0.5×	271 2.9×	25	529
B. K. Ramavat India	10	260 1.4×	87 0.6×	40 0.4×	130 1.3×	40 0.4×	17	367
Koki Nagayama Japan	7	313 1.7×	72 0.5×	65 0.6×	107 1.1×	168 1.8×	10	534
Sebastiano Mangiafico Italy	9	54 0.3×	35 0.3×	49 0.5×	39 0.4×	90 1.0×	15	329
Hiba Mawlawi Lebanon	11	144 0.8×	74 0.5×	52 0.5×	31 0.3×	78 0.8×	24	336
Yasuko Yoshizawa Japan	7	225 1.2×	72 0.5×	34 0.3×	45 0.5×	126 1.3×	11	355
Diego A. Navarro Argentina	16	404 2.2×	261 1.9×	191 1.8×	189 1.9×	127 1.4×	29	778
S. V. Yarotsky Russia	10	182 1.0×	129 1.0×	94 0.9×	91 0.9×	258 2.7×	27	573
Jinju Jiang China	9	159 0.9×	80 0.6×	50 0.5×	49 0.5×	111 1.2×	12	313

Countries citing papers authored by J.R. Nunn

Since Specialization

Citations

This map shows the geographic impact of J.R. Nunn'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 J.R. Nunn with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.R. Nunn more than expected).

Fields of papers citing papers by J.R. Nunn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.R. Nunn. 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 J.R. Nunn. The network helps show where J.R. Nunn may publish in the future.

Co-authorship network of co-authors of J.R. Nunn

This figure shows the co-authorship network connecting the top 25 collaborators of J.R. Nunn. A scholar is included among the top collaborators of J.R. Nunn based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with J.R. Nunn. J.R. Nunn is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Nunn, J.R., Haralambos Parolis, & I. Russell. (1981). The desulphated polysaccharide of Anatheca dentata. Carbohydrate Research. 95(2). 219–226. 6 indexed citations

Dutton, Guy G.S., José Luis Di Fábio, Donald M. Leek, et al.. (1981). Preparation of oligosaccharides by the action of bacteriophage-borne enzymes on Klebsiella capsular polysaccharides. Carbohydrate Research. 97(1). 127–138. 34 indexed citations

Nunn, J.R., et al.. (1975). Investigation of the acetolysis products of the sulphated polysaccharide of Aeodes ulvoidea. Carbohydrate Research. 40(2). 337–344. 15 indexed citations

Nunn, J.R., et al.. (1974). The linkage of 4-O-methyl-L-galactose in the sulphated polysaccharide of Aeodes ulvoidea. Carbohydrate Research. 36(1). 139–145. 20 indexed citations

Nunn, J.R., Haralambos Parolis, & I. Russell. (1973). Sulphated polysaccharides of the Solieriaceae family. Carbohydrate Research. 29(2). 281–289. 14 indexed citations

Nunn, J.R., Haralambos Parolis, & I. Russell. (1973). Polysaccharides of the red alga Chaetangium erinaceum. Carbohydrate Research. 26(1). 169–180. 19 indexed citations

Nunn, J.R., et al.. (1971). Sulphated Polysaccharides of the Grateloupiaceae Family Part V1. A Polysaccharide from Aeodes ulvoidea. Carbohydrate Research. 16(1). 71–78. 23 indexed citations

Nunn, J.R., et al.. (1971). Sulphated polysaccharides of the grateloupiaceae family. Carbohydrate Research. 19(2). 161–168. 23 indexed citations

Nunn, J.R. & Haralambos Parolis. (1970). Sulphated polysaccharides of the grateloupiaceae family. Carbohydrate Research. 14(2). 145–150. 11 indexed citations

10.

Nunn, J.R. & Haralambos Parolis. (1969). Sulphated polysaccharides of the grateloupiaceae family. Carbohydrate Research. 9(3). 265–276. 23 indexed citations

11.

Nunn, J.R., et al.. (1969). Carcinogen in a Transkeian Bantu Food Additive. Nature. 222(5199). 1198–1199. 52 indexed citations

12.

Nunn, J.R. & Haralambos Parolis. (1968). A polysaccharide from Aeodes orbitosa. Carbohydrate Research. 6(1). 1–11. 23 indexed citations

13.

Nunn, J.R. & Haralambos Parolis. (1968). Sulphated polysaccharides of the Grateloupiaceae family Part II. Isolation of 4-O-methyl-l-galactose, 6-O-methyl-d-galactose, and two disaccharides from hydrolysates of aeodan. Carbohydrate Research. 8(3). 361–362. 6 indexed citations

14.

Nunn, J.R., et al.. (1959). 102. Red-seaweed polysaccharides. Part III. Polysaccharide from Hypnea specifera. Journal of the Chemical Society (Resumed). 493–493. 8 indexed citations

15.

Nunn, J.R., et al.. (1957). 34. Red-seaweed polysaccharides. Part I. Gracilaria confervoides. Journal of the Chemical Society (Resumed). 197–197. 15 indexed citations

16.

Nunn, J.R., et al.. (1957). 215. Red-seaweed polysaccharides. Part II. Porphyra capensis and the seperation of D- and L-galactose by crystallisation. Journal of the Chemical Society (Resumed). 1094–1094. 21 indexed citations

17.

Charlson, Alexander J., J.R. Nunn, & Alistair M. Stephen. (1955). Acacia karroo gum. Journal of the Chemical Society (Resumed). 1428–1428. 12 indexed citations

18.

Nunn, J.R., et al.. (1955). Galactosyl Glycerol from Gelidium pristoides and Gracilaria confervoides. Journal of the American Chemical Society. 77(9). 2551–2552. 9 indexed citations

19.

Nunn, J.R., et al.. (1955). South african seaweeds: Seasonal variations in the chemical composition of some phaeophyceae. Journal of the Science of Food and Agriculture. 6(4). 193–197. 8 indexed citations

20.

Charlson, Alexander J., J.R. Nunn, & Alistair M. Stephen. (1955). The composition of acacia cyanophylla gum. Journal of the Chemical Society (Resumed). 269–269. 17 indexed citations

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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