JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY, vol. 35, no. 8, page. 859 - 865, 2008-08
JOURNAL OF DAIRY SCIENCE, vol. 90, no. 5, page. 2141 - 2146, 2007-05
BIOTECHNOLOGY LETTERS, vol. 27, no. 20, page. 1537 - 1541, 2005-10
BIOCHEMICAL ENGINEERING JOURNAL, vol. 15, no. 2, page. 93 - 99, 2003-08