Biological Activity and Improvement Effect on Irritable Bowel Syndrome of Wax Gourd Extract and Probiotic Lactic Acid Bacteria

동아 추출물과 프로바이오틱 유산균의 생리활성 및 과민성대장증후군 개선 효과

Ann, Yong-Geun;Jang, Byeong-Churl;Park, Se-Joon

  • Received : 2013.03.04
  • Accepted : 2013.03.11
  • Published : 2013.03.31


Biological activities of wax gourd (Benincase hispida) extract and lactic acid bacteria (Lactobacillus casei and Bifidobacterium bifidum) were investigated in this study. Wax gourd extract reduced the activity of angiotensin-converting enzyme (ACE) by 47.9%, of tyrosinase by 13.2%, and had an anti-oxidant activity of 23.4%. Oral administration of wax gourd extract for 72 hours improved the symptom of loose bowels for 120 patients with its highest improvement rates within 6 to 12 hours. The improvement rates were standardized by the curative state by 80%. Lactic acid bacteria preparations reduced the activity of ACE by 21.49%. Oral administration of lactic acid bacteria preparations for 72 hours improved the symptom of loose bowels for 108 patients with its highest improvement rates after 24 hours. On the basis of these results, the tablets containing both wax gourd extract and lactic acid bacteria preparations for the improvement of irritable bowel syndromes were developed. The tablets reduced the activity of ACE by 27.1% and exhibited an anti-oxidant activity of 20.3%. Treatment of the tablets at 100 ${\mu}g/m{\ell}$ and 250 ${\mu}g/m{\ell}$ for 24 hours inhibited the growth of A549 human lung cancer cells by 67%, which was much higher than that of each wax gourd extract or lactic acid bacteria. In addition, treatment of the tablets at 100 ${\mu}g/m{\ell}$ for 24 hours reduced the growth of HCT-116 human colon cancer cells by 70%. Oral administration of the tablets to the patients with loose bowels led to higher improvement rates and speed than each wax gourd extract or lactic acid bacteria. Oral administration of the tablets to the patients with irritable bowel syndromes of loose bowels, constipation, or general type for 72 hours improved their symptoms by 100% with the highest improvement rates within 3 to 6 hours. Furthermore, the improvement rates and speed by the tablets was much higher than each wax gourd extract or lactic acid bacteria.


wax gourd;probiotics;lactic acid bacteria;IBS;biological activity


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