2004 Fiscal Year Final Research Report Summary
Ostrich meat as new food resources and food histology analysis and application of an egg
| Project/Area Number |
14580157
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
食生活
|
|---|
| Research Institution | Aoba gakuen Junior College |
|---|
Principal Investigator |
MINEKI Machiko Aoba gakuen Junior College, Faculty of Food Nutrition, Professor, 食物栄養学科, 教授 (30129283)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
WATANABE Kouichi Tohoku University, Graduate School of Agriculture Science, Assistant, 大学院・農学研究科, 助手 (80261494)
TANAHASHI Nobuko Aoba gakuen Junior College, Faculty of Food Nutrition, Assistant, 食物栄養学科, 助手 (80369412)
|
|---|
| Project Period (FY) |
2002 – 2004
|
| Keywords | Ostrich / Microscope observation / Muscular fiber type / Myosin / Skeletal muscle / Yolk sphere / Texture / Sensory test |
|---|
| Research Abstract |
The ostrich hind limb was dissected for identifying thigh musculature. Muscle samples were removed from ostrich thigh muscles, and were frozen quickly by a dry ice-acetone mixture. Cross sections were cut on a cryostat for enzyme histochemistry. Myofiber types were classified into type I, type IIA and Type IIB myofibers based on its histochemical properties. In ostrich, myosin ATPase relativities of type IIA myofibers were different from that of chicken, and were weak to moderate after acid preincubation (pH 4.4 to 4.5). For commercial ostrich cut meats, the M.Diotibialis cranialis and M.Iliofibularis were named as "fillet loin" and "fan fillet", respectively. The ostrich meats boiled for 90 sec. and fried for 60 sec. Come up with a good result by sensory test. Also, the weight after cooking ostrich meats was about 80% that of raw meat and was a like cooking pork meat
The shell of ostrich egg was extremely thick, the ratio of shell weight to egg weight was 20.0% (12.4% : hen egg), and yolk index was 0.17 (0.39 : hen egg). Chemical properties of ostrich egg were similar to those of hen egg. The adhesion in physical properties of ostrich egg albumen was higher than that of hen egg. SDS-PAGE patterns of albumen and yolk were different in between ostrich egg and hen egg. The shell and its vertical crystal layer of the ostrich egg were approximately five times thicker than those of the hen egg. The ostrich yolk was packed with polyhedral yolk-spheres. Which have similar shape and size to those of the hen eggs. As the weight of ostrich egg is about 20 times as much as that of hen egg, ostrich egg is expected as a useful food resource.
|
Research Products
(8 results)
