본 연구는 구운 횟수에 따른 죽염의 미네랄 농도변화와 항우식 효과를 확인하기 위하여 수행하였다. 미네랄 변화는 9회 죽염에서 Na, K, Mn 그리고 Fe이 높게 나타났으며, Mg, Ca 및 SO4는 1회 죽염에 서 가장 높았다. 구강 병원균 2종에 대한 최소억제농도 측정 결과 S. mutans에 대한 죽염의 MIC는 25mg/mL으로 나타났으나 S. sanguinis에 대한 죽염의 MIC는 50mg/mL로 S. mutans에 대한 항균효 과가 S. sanguinis보다 높은 것으로 나타났으며, 2종의 균주 모두에 대해 천일염보다는 죽염의 항균효 과가 더 높은 것으로 나타났다. 더욱이, 3%의 죽염에서 구강 내 pH 환경이 pH≥5.5로 오래 지속되는 것으로 나타났다. 따라서, 본 연구 결과는 죽염이 치아우식과 치주질환을 감소시키는데 유용할 것이라 생각될 수 있겠으나 보다 세밀한 추가 연구가 진행되어야 할 것으로 판단된다.

Various research on the surface of the skin and the relationship between epidermis and composition of ion have been performed. Traditionally, bamboo extract was used as an important material for enhancing healthy condition of a skin. Bamboo salt is well known as one of the most famous traditional medical treatments. In this study, we investigated the stability of P/S (Polyol-in-Silicone) emulsions containing a fair amount of bamboo salt in the range of 0.5~5.0 wt%. For improving the stability of emulsions, we varied the quantity of fatty alcohol and wax ester in emulsions and the stability was checked using DSC (Differential Scanning Calorimeter). We also studied the efficacy of treating the P/S emulsions containing bamboo salt. From the experiment, the emulsions show the mitigation of stimuli, enhancing the skin hydration and improving the appearance of the skin.

Bamboo salt has been used as a traditional remedy for gastric ulcer and gastro-intestinal disorders. It is produced by baking the salt packed in bamboo cylinder nine times under the fire of pine tree. Three of commercially available bamboo salt products (bamboo salt A, B, and C) were characterized by qualitative and quantitative analyses using inductively coupled plasma (ICP) spectrometer, ion chromatograph (IC), X-ray diffractometer (XRD), and electron microscope (EM). Compared with crude salt, the contents of iron, silicon, potassium, and phosphate in the bamboo salt products were higher whereas the sulfate content was lower. Water-insoluble fraction of bamboo salts contained the following compounds; MgO, SiO₂, Mg₂SiO₄, and CaMgSiO₄. The study on the microscopic structures of the bamboo salts were shown to have smooth surface and fused shape compared with crude salt. Among the three bamboo salt products, product A was used to test a possible inhibitory effect on gastric acid secretion. Each test material (bamboo salt A, crude salt, and reagent-grade NaCl) was given orally to Sprague-Dawley rats at doses of 0.2, 1.0, and 2.0 g/kg for 28 days before pyrolus ligation. Twenty four hours after the last administration of the test materials, volume, pH, total acidity, and pepsin activity of gastric juice were measured by the Shay-ligation method. No significant differences were observed in the secretion of gastric acid between treated groups (bamboo salt-, crude salt- and reagent-grade NaCl-treated groups) and control group (distilled water-treated group). This result demonstrated that bamboo salt did not exert anti-ulcer activities in experimental animals used in the present study.

1.0 wt% triclosan과 0.4 wt% 죽염을 함유한 바디워시의 액취 등에 미치는 효과에 대한 연구를 위하여 in vitro 항균시험 및 무작위 배정, 이중맹검, 교차설계로 진행한 임상시험을 실시하였다. 1.0 wt% triclosan과 0.4 wt% 죽염을 함유한 바디워시는 Corynebacterium glutamicum, Corynebacterium xerosis, Corynebacterium jeikeium를 균주로 한 in vitro 항균 실험에서 모두 우수한 항균 효과가 있었다. 1.0 wt% triclosan과 0.4 wt% 죽염을 함유한 바디워시는 액취를 전반적으로 유의성 있게 감소시켰고 그 효과는 최소 9 h 동안 지속되었다. 1.0 wt% triclosan과 0.4 wt% 죽염을 함유한 바디워시는 액와 균수를 유의성 있게 감소시켰고 그 효과는 최소 9 h 동안 지속되었다. 임상시험 기간 동안 피시험자 전체에서 이상반응 증상은 나타나지 않았다. 결론적으로 1.0 wt% triclosan과 0.4 wt% 죽염을 함유한 바디워시는 액취에 대한 감소효과와 피부 안전성이 우수하였다.