Average citations per paper: 43.26

1. Okarter, N. and Liu, R.H.  Health benefits of whole grain phytochemicals. Critical Review in Food Science and Nutrition (in press).
2. Yang, J. and Liu, R.H. Synergistic effect of apple extracts and quercetin 3-b-D-glucoside combination on antiproliferative activity in MCF-7 human breast cancer cells in vitro. J. Agric. Food Chem. 57 (18): 8581-8586, 2009 (Online 8/20/09).
3. Okarter, N., Liu, C-S., Sorrells, M.E.,and Liu, R.H. Phytochemical content and antioxidant activity of six diverse varieties of whole wheat.  Food Chemistry 119 (1): 249-257, 2009 (Online 6/17/09).
4. Yang, J. Martinson, T.E., and Liu, R.H.  Phytochemical profiles and antioxidant activies of wine grapes.  Food Chemistry 116: 332-339, 2009.
5. Yang, J. and Liu, R.H.  Induction of phase II enzyme, quinone reductase, in murine hepatoma cells in vitro by grape extracts and selected phytochemicals.  Food Chemistry 114 (3): 898-904, 2009.
6. Li, Q., Liu, N., Wang, Y., Zhou, L., Wu, Q., Fan, Z., Sun, J., Wang, Y., Yin, P., Zhou, S., Gao, H., Liu, R.H. Helicobacter pylori enhances cyclooxygenase-2 expression via p38MAPK/ATF-2 signaling pathway in MKN45 cells. Cancer Letters 278: 97-103, 2009 (Online 2/6/09).
7. Yang, J., Liu, R.H., and Halim, L. Antioxidant and antiproliferative activities of common edible nut. LWT-Food Science and Technology 42(1): 1-8, 2009 (Online 11/21/08).
8. Felice, D.L., Sun, J. and Liu, R.H. A modified methylene blue assay for accurate cell counting.  Journal of Functional Foods 1 (1): 109-118, 2009 (Online 10/19/08).
9. Liu, J., Dong, H., Chen, B., Zhao, P. and Liu, R.H.  Fresh apples suppress mammary carcinogenesis, proliferative activity, and induce apoptosis in the mammary tumors of the Sprague-Dawley rat. J. Agric. Food Chem.  57 (1): 297-304, 2009 (Online 12/10/08).
10. Liu, R.H. Phytochemicals: human disease prevention agents. McGraw-Hill Yearbook of Science & Technology 2009, McGraw-Hill, Inc. December 22, 2008, pp281-286.
11. Sun, J. and Liu, R.H. Apple phytochemical extracts inhibited proliferation of estrogen-dependent and estrogen-independent human breast cancer cells through cell cycle modulation.  J. Agric. Food Chem.  56 (24): 11661-11667, 2008 (Online 11/26/08).
12. He, X.J. and Liu, R.H. Phytochemicals of apple peels: isolation, structure elucidation, and their antiproliferative and antioxidant activities.  J. Agric. Food Chem.  56 (21): 9905-9910, 2008 (Online 10/2/08).
13. He, X.J., Liu, D. and Liu, R.H. A novel sodium borohydride/chloranil-based assay for quantifying total flavonoids.  J. Agric. Food Chem.  56 (20): 9337-9344, 2008 (Online 9/18/08).
14. Wolfe, K., Kang, X., He, X., Dong, M., Zhang, Q., and Liu, R.H.  Cellular antioxidant activity of common fruits.  J. Agric. Food Chem.  56 (18): 8418-8426, 2008 (Online 8/30/08).
    
15. Yoon, H. and Liu, R.H. Effect of 2α-hydroxyursolic acid on NF-κB activation induced by TNF-α in human breast cancer MCF-7 cells. J. Agric. Food Chem.  56 (18): 8412-8417, 2008 (Online 8/14/08).
    
16. Wolfe, K. and Liu, R.H. Structure-activity relationships of flavonoids in the cellular antioxidant activity assay. J. Agric. Food Chem.  56 (18): 8404-8411, 2008 (Online 8/15/08).
    
17. Shin, Y.J,  Ryu, J.A., Liu, R.H., Nock, J.F.,  Polar-Cabrera, K., and Watkins, C.B.  Fruit quality, antioxidant contents and activity, and antiproliperative activity of strawberry fruit stored in elevated CO2 atmospheres.  J. Food Sci. 73 (6): S339-S334, 2008.
    
18. Shin, Y.J,  Ryu, J.A., Liu, R.H., Nock, J.F.,  Polar-Cabrera, K., and Watkins, C.B.  Fruit quality, antioxidant contents and activity, and antiproliperative activity of strawberry fruit stored in elevated CO2 atmospheres.  J. Food Sci. 73 (6): S339-S334, 2008.
    
19. Shin, YJ, Ryu, J-A., Liu, R.H., Nock, J.F. and Watkins, C.B.  Harvest maturity, storage temperature and relative humidity affect fruit quality, antioxidant contents and activity, and inhibition of cell proliferation of strawberry fruit. Postharvest Biology and Technology 49 (2): 201-209, 2008.
    
20. Wolfe, K.L. and Liu, R.H.  Cellular antioxidant activity (CAA) assay for assessing antioxidants, foods, and dietary supplements. J. Agric. Food Chem.  55 (22): 8896-8907, 2007 (Online 9/29/07).
    
21. Liu, R.H. Whole grain phytochemicals and health.   Journal of Cereal Science. 46 (3): 207-219, 2007 (Online 7/3/07).
    
22. Dong, M., He, X.J. and Liu, R.H..  Phytochemicals of black bean seed coats: isolation, structure elucidation, and their antiproliferative and antioxidative activities. J. Agric. Food Chem. 55 (15): 6044-6051, 2007 (Online 6/30/07).
    
23. He, X.J. and Liu, R.H.  Triterpenoids isolated from apple peels have potent antiproliferative activity and may be partially responsible for apple’s anticancer activity. J. Agric. Food Chem. 55 (11): 4366-4370, 2007 (Online 5/8/07).
    
24. Shin, YJ, Liu, R.H., and Watkins, C.B.  Temperature and relative humidity effects on quality, total ascorbic acid, phenolics and flavonoid concentrations, and antioxidant activity of strawberry. Postharvest Biology and Technology 45: 349-357, 2007 (Online 5/3/07).
    
25. de la Parra, C., Serna Saldivar, S.O., and Liu, R.H.  Effect of processing on the phytochemical profiles and antioxidant activity of corn for production of masa, tortilla and tortilla chips.  J. Agric. Food Chem. 55 (10): 4177-4183, 2007 (Online 4/25/07).
    
26. Liu, R.H. Cell culture models to assess bioactivity of functional foods and dietary supplements. ACS Symposium Series 956: 83-91, 2007.
    
27. Liu, R.H. and Felice, D.L. Whole food phytochemicals for cancer prevention. ACS Symposium Series 956: 15-34, 2007.
    
28. Yoon, H. and Liu, R.H. Effect of selected phytochemicals and apple extracts on NF-κB activation in human breast cancer MCF-7 cells. J. Agric. Food Chem. 55 (8): 3167-3173, 2007 (Online 3/21/07).
    
29. He, X.J. and Liu, R.H. Cranberry phytochemicals: isolation, structure elucidation, and their antiproliferative and antioxidant activities. J. Agric. Food Chem.54 (19): 7069-7074, 2006.
    
30. He, X., Lobkovsky, E., and Liu, R.H. (2S*,3S*,4R*,5R*)-3,4,5-Trihydroxy-6-(hydroxymethyl)-3,4,5,6-tetrahydro-2H-pyran-2-yl benzoate. Acta Cryst. E62: O471-O472, 2006 (On line 1/7/06).
    
31. Sun, J. and Liu, R.H. Cranberry phytochemical extracts induce cell cycle arrest and apoptosis in human MCF-7 breast cancer cells. Cancer Letters. 241: 124-134, 2006 (On line 12/27/05). [PubMed]
    
32. He, X., Lobkovsky, E., and Liu, R.H. (R*)-Methyl 3-carboxy-2-hydroxypropanoate. Acta Crystallographica E61: 04104-04106, 2005 (On line 11/6/05).
    
33. Adom, K.K. and Liu, R.H. Rapid peroxyl radical scavenging capacity (PSC) assay for assessing both hydrophilic and lipophilic antioxidants. J. Agric. Food Chem. 53(17):6572-6580, 2005.[PubMed]
    
34. Chu, Y-F. and Liu, R.H. Cranberries inhibit LDL oxidation and induce LDL receptor expression in hepatocytes. Life Sci. 77(15):1892-1901, 2005.[PubMed]
    
35. Liu, R.H. and Finley, J. Potential cell culture models for antioxidant research. J. Agric. Food Chem. 53(10):4311-4314, 2005.[PubMed]
    
36. Liu, R.H., Liu, J., and Chen, B. Apples prevent mammary tumors in rats. J. Agric. Food Chem. 53(6):2341-2343, 2005.[PubMed]
    
37. Adom, K.K., Sorrells, M.E., and Liu, R.H. Phytochemicals and antioxidant activity of milled fractions of different wheat varieties. J. Agric. Food Chem. 53(6): 2297-2306, 2005.[PubMed]
    
38. Boyer, J., Brown, D., and Liu, R.H. In vitro digestion and lactase treatment influence uptake of quercetin and quercetin glucoside by the Caco-2 cell monolayer. Nutritional Journal 4(1):1, 2005.[PubMed] [Full Text]
    
39. Liu, R.H. Potential synergy of phytochemicals in cancer prevention: mechanism of action. J. Nutr. 134(12S): 3479S-3485S, 2004.[PubMed] [Full Text]
    
40. Boyer, J., Brown, D., and Liu, R.H.. Uptake of quercetin and quercetin-3-glucoside from whole onions and apple peels by Caco-2 cell monolayers. J. Agric. Food Chem. 52 (23): 7172-7179, 2004.[PubMed]
    
41. Chu, Y-F. and Liu, R. H. Novel low-density lipoprotein (LDL) oxidation model: Antioxidant capacity for the inhibition of LDL. J. Agric. Food Chem. 52 (22): 6818-6823, 2004.[PubMed]
    
42. Yang, J., Meyers, K.J., van der Heide, J. and Liu, R.H. Varietal differences in phenolic content, and antioxidant and antiproliferative activities of onions. J. Agric. Food Chem. 52 (21): 6787-6793, 2004. [PubMed]
    
43. Liu, C-S, Glahn, R. P., and Liu. R.H. Assessment of carotenoid bioavailability of whole foods using a Caco-2 cell culture model coupled with an in vitro digestion. J. Agric. Food Chem. 52(13): 4330-4337, 2004.[PubMed]
    
44. Chen, B.Q., Yang, Y.M., Wang, Q., Gao, Y.H., Liu, J.R., Zhang, J.S., Wang, X.L., Liu, R.H. Effects of c9, t11-conjugated linoleic acid on adhesion of human gastric carcinoma cell line SGC-7901. World J Gastroenterol 10 (10): 1392-1396, 2004.[PubMed] [Full Text]
    
45. Boyer, J. and Liu, R.H. Apple phytochemicals and their health benefits. Nutrition Journal 3:5, 2004.[PubMed]
    
46. Jiratanan, T. and Liu, R.H. Antioxidant activity of processed table beets (Beta vulgaris var conditiva) and green beans (Phaseolus vulgaris L.). J. Agric. Food Chem. 52 (9): 2659-2670, 2004.[PubMed]
    
47. Adom, K.K., Sorrells, M.E., and Liu, R.H. Phytochemicals and antioxidant activity of wheat varieties. J. Agric. Food Chem. 51 (26): 7825-7834, 2003. [PubMed] [Highly Cited Article]
    
48. Meyers, K.K., Watkins, C.B., Pritts, M.P., and Liu, R.H. Antioxidant and antiproliferative activities of strawberries. J. Agric. Food Chem. 51 (23): 6887-6892, 2003.[PubMed]
    
49. Liu, R. H. Health benefits of fruits and vegetables are from additive and synergistic combination of phytochemicals. Am. J. Clin. Nutr. 78(3S): 517S-520S, 2003.[PubMed] [Full Text]
    
50. Wolfe, K. and Liu, R. H. Apple peels as a value-added food ingredient. J. Agric. Food Chem. 51 (6): 1676-1683, 2003.[PubMed]
    
51. Liu, R.H. and Sun, J. Antiproliferative activity of apples is not due to phenolic-induced hydrogen peroxide formation. J. Agric. Food Chem. 51 (6): 1718-1723, 2003.[PubMed]
    
52. Yeung, C. K., Glahn, R. P., Wu, X., Liu, R. H. and Miller, D.D. Iron bioavailability and antioxidant activity of raisins. J Food Sci 65 (2): 701-705, 2003.
    
53. Wolfe, K., Wu, X. and Liu, R. H. Antioxidant activity of apple peels. J. Agric. Food Chem. 51 (3): 609-614, 2003.[PubMed] [Highly Cited Article]
    
54. Sun, J., Chu, Y-F., Wu, X., and Liu, R.H. Antioxidant and antiproliferative activities of fruits. J. Agric. Food Chem. 50 (25): 7449-7454, 2002.[PubMed] [Highly Cited Article]
    
55. Boato, F., Wortley, G. M., Liu, R. H., and Glahn, R. P. Red grape juice inhibits iron availability: application of an in vitro digestion/caco-2 cell model. J. Agric. Food Chem. 50 (23): 6935-6938, 2002.[PubMed]
    
56. Chu, Y-F., Sun, J., Wu, X., and Liu, R. H. Antioxidant and antiproliferative activities of vegetables. J. Agric. Food Chem. 50 (23): 6910-6916, 2002.[PubMed]
    
57. Gunes, G., Liu, R. H., and Watkins, C. B. Controlled atmosphere effects on postharvest quality and antioxidant activity of cranberry fruits. J. Agric. Food Chem. 50 (21): 5932-5938, 2002.[PubMed]
    
58. Adom, K. K. and Liu, R. H. Antioxidant activity of grains. J. Agric. Food Chem. 50 (21): 6182-6187, 2002.[PubMed] [Highly Cited Article]
    
59. Liu, R.H. Health benefits of phytochemicals in functional foods (Invited article). Food Technology Briefing: Innovative Food Ingredients, pp.2-5, October 2002.
    
60. Liu, J. R., Li, B., Chen, B., Han, X., Xue, Y., Zheng, Y., and Liu, R. H. Effect of cis-9, trans-11-conjugated linoleic acid on cell cycle of gastric adenocarcinoma cell line (SGC-7901). World J. Gastroenterol 8(2): 224-229, 2002.[PubMed] [Full Text]
    
61. Dewanto, V., Wu, X., and Liu, R. H. Processed sweet corn has higher antioxidant activity. J. Agric. Food Chem. 50 (17): 4959-4964, 2002.[PubMed]
    
62. Kim, Y-J. and Liu, R. H. Increase of conjugated linoleic acid (CLA) content in milk by fermentation with Lactic Acid Bacteria. J. Food Sci. 67 (5): 1731-1737, 2002.
    
63. Dewanto, V., Wu, X., Adom, K. K., and Liu, R. H. Thermal processing enhances the nutritional value of tomatoes by increasing total antioxidant activity. J. Agric. Food Chem. 50 (10): 3010-3014, 2002.[PubMed] [Highly Cited Article]
    
64. Kim, Y. J., Liu, R. H., Rychlik, J. L., and Russell, J. B. The enrichment of a ruminal bacterium (Megasphaera elsdenii YJ-4) that produces the trans-10, cis-12 isomer of conjugated linoleic acid. J. Applied Microbiology 92(5): 976-982, 2002.[PubMed]
    
65. Liu, R. H. Supplement quick fix fails to deliver (Invited article). Food Technology International 1: 71-72, 2002.
    
66. Liu, M, Li, X. Q., Weber, C., Lee, C. Y., Brown, J., and Liu, R. H. Antioxidant and antiproliferative activities of raspberries. J. Agric. Food Chem. 50 (10): 2926-2930, 2002.[PubMed] [Highly Cited Article]
    
67. Chen, B. Q., Xue, Y. B, Lin, H. T., Xue, Y. W., Liu, R. H. The effects of conjugated linoleic acid on the adhesion and migration of B16-MB Mouse Melanoma cells. J. Health Toxicology 14(1):23-26, 2001.
    
68. Xue, Y. B., Chen, B. Q., Zheng, Y. M., Yuan, L. L., Liu, R. H. Effects of conjugated linoleic acid on the metastasis of mouse melanoma B16-MB. J. Hygiene Res. 30 (1):37-39, 2001.[PubMed]
    
69. Kim, Y-J., Liu, R. H., Bond, D. R., and Russell, J. B. Effect of linoleic acid concentration on conjugated linoleic acid production by Butyrivibrio fibrisolvens A38. Applied and Enviromental Microbiology 66 (12): 5226-5230, 2000.[PubMed] [Full Text]
    
70. Leung, Y. H., and Liu, R. H. trans-10, cis-12-Conjugated linoleic acid isomer exhibits stronger oxyradical scavenging capacity than cis-9, trans-11-conjugated linoleic acid isomer. J. Agric. Food Chem. 48 (11): 5469-5475, 2000.[PubMed]
    
71. Eberhardt, M. V., Lee, C. Y., and Liu, R. H. Antioxidant activity of fresh apples. Nature 405(6789): 903-904, 2000.[PubMed]
    
72. Liu, J., Chen, B., Liu, R. H., Lu, G., Zhu, Y., Han, X. Inhibitory effect of conjugated linoleic acid on human gastric carcinoma cell line. Journal of Hygiene Research 28(6): 353-355, 1999.[PubMed]
    
73. Kim, Y-J. and Liu, R. H. Selective increase in conjugated linoleic acid in milk fat by crystallization. J. Food Sci. 64: 792-795, 1999.
    
74. Liu, R. H., Jacob, J. R. and Tennant, B. C. Chemiluminescent detection of protein molecular weight markers in Western blot techniques. Biotechniques 22(4): 594-595, 1997.[PubMed]
    
75. Liu, R. H. and Hotchkiss, J. H. Potential genotoxicity of chronically elevated nitric oxide: A review. Mutation Research 339(2):73-89, 1995.[PubMed]
    
76. Liu, R. H., Jacob, J. R., Hotchkiss, J. H., Cote, P. J., Gerin, J. L. and Tennant, B. C. Hepatitis virus surface antigen induces nitric oxide synthesis in hepatocytes: possible role in hepatocarcinogenesis. Carcinogenesis 15(12): 2875-2877, 1994.[PubMed]
    
77. Hotchkiss, J. H., Liu, R. H., Lillard, T. J. Nitric oxide production and catalysis of N-nitroso compound formation by woodchucks (Marmota monax) and woodchuck hepatocytes in culture. ACS Symposium Series 553: 147-156, 1994.
    
78. Jacob, J. R., Liu, R. H., Roneker, C., Noronha, F. D., Hotchkiss, J. H. and Tennant, B.C. Characterization and immortalization of woodchuck hepatocytes isolated from normal and hepadnavirus-infected woodchucks (Marmota monax). Experimental Cell Research 212(1): 42-48, 1994.[PubMed]
    
79. Liu, R. H., Jacob, J. R., Hotchkiss, J. H., and Tennant, B. C. Synthesis of nitric oxide and nitrosamine by immortalized woodchuck hepatocytes. Carcinogenesis 14(8): 1609-1613, 1993.[PubMed]
    
80. Liu, R. H., Jacob, J. R., Tennant, B. C., and Hotchkiss, J. H. Nitrite and nitrosamine synthesis by hepatocytes isolated from normal woodchucks (Marmota monax) and woodchucks chronically infected with woodchuck hepatitis virus. Cancer Research 52(15): 4139-4143, 1992.[PubMed]
    
81. Hotchkiss, J. H., Maragos, C. M., and Liu, R. H. Quantifying gastric nitrate and nitrate reductase activity in the normal and achlorhydria stomach. In: Nitrate Contamination: Exposure, Consequences, and Control. I. Bogardi and R. Kuzelka, eds. Springer-Verlag, NY pp.297-307, 1991.
    
82. Liu, R. H., Baldwin, B., Tennant, B. C. and Hotchkiss, J. H. Elevated formation of nitrate and N-nitrosodimethylamine in woodchucks (Marmota monax) associated with chronic woodchuck hepatitis virus infection. Cancer Research 51(15):3925-3929, 1991.[PubMed]
    
83. Liu, R. H., Conboy, J.J., and Hotchkiss, J. H. Nitrosation by nitro-nitroso derivatives of olefins: a potential mechanism for N-nitrosamine formation in fried bacon. J. Agric. Food Chem., 36(5): 984-987, 1988.
    
    Technical Articles, Reviews, Books, ect.
    
    
84. Wolfe, K. and Liu, R.H. Apple peels are rich in phytochemicals and have high antioxidant activity. New York Fruit Quarterly 10(3): 2002.
    
85. Liu, R.H. Health benefits of dietary flavonoids: flavonols and flavones. New York Fruit Quarterly 10(3): 16-18, 2002.
    
86. Liu, R. H., Eberhardt, M. V., Lee, C. Y. Health benefits of apples: antioxidant and antiproliferative activities of selected New York apple cultivars. New York Fruit Quarterly 10(2): 17, 2002.
    
87. Weber, C., Liu, M, Li, X. Q., and Liu, R.H. Antioxidant capacity and anticancer properties of red raspberry. New York Fruit Quarterly 9(3):25-27, 2001.
    
88. Liu, R. H., Eberhardt, M. V., Lee, C. Y. Antioxidant and antiproliferative activities of selected New York apple cultivars. New York Fruit Quarterly 9(2):15-17, 2001.
    
89. Liu, R. H. and Espinosa, A. Invited review: Bio-active compounds from fruits and vegetables in the prevention of cancer. In: Agriculture of the New Century: Managing Bio-Resources and Bio-Diversity, National Taiwan University, Taipei, Taiwan, pp.53-59, 2000.
    
90. Liu, R. H. The production of nitric oxide and N-nitrosamines in normal woodchucks, hepatitis virus-infected woodchucks and isolated hepatocytes. Ph.D. Dissertation. Cornell University 1993.