6)Facilities offered by the theme parks
Accommodation, hotels and other tourist facilities, provide services so that tourists can stay overnight during their travels. Other facilities necessary for tourism development include tour and travel operations, restaurants, retail 638 outlets, souvenir shops, financial facilities and services, tourist information offices, public safety facilities and
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
1. 이론적 고찰
Hyaluronidase는 mucopolysaccharide를 가수분해하는 효소로써 hyaluronic aci-d를 분해하는 작용 이외에 모세혈관 투과성에 관여하며 급성부종을 야기하는 기염제로 알려져 있다.
1929년 Duran-Reynals는 streptococcal bacteria의 한 군에서 확산인자를 발견했고, hyaluronic acid에 대해 탈 성능의 hyaluronidas