| 1. | Food additive propyl p - hydroxybenzoate
食品添加剂对羟基苯甲酸丙酯 |
| 2. | Food additive ethyl p - hydroxybenzoate
食品添加剂对羟基苯甲酸乙酯 |
| 3. | Synthesis of ethyl p - hydroxybenzoate with the solid superacid s2o2 - 8 zro2 - al2o
3催化合成对羟基苯甲酸乙酯 |
| 4. | Synthesis of butyl p - hydroxybenzoate catalyzed by solid superacid s2o82 - tio2 - zro
2催化合成邻苯二甲酸二正丁酯 |
| 5. | New synthesis method of n - heptyl - p - hydroxybenzoate by the complex acid catalysis
混合酸催化合成对羟基苯甲酸庚酯的新方法 |
| 6. | Synthesis of butyl p - hydroxybenzoate with ammononium ferric sulfate dodecahydrate catalyst
硫酸铁铵催化合成对羟基苯甲酸丁酯 |
| 7. | Phosphoric acid catalytic synthesis of butyl p - hydroxybenzoate under microwave irradiation
微波辐射催化合成乙酸正丁酯的研究 |
| 8. | Study on the catalytic synthesis of ethyl p - hydroxybenzoate by copper p - toluene sulfonate
对甲苯磺酸铜催化合成对羟基苯甲酸乙酯的研究 |
| 9. | It was confirmed that the key enzyme of coq10 synthesis is p - hydroxybenzoate polyprenyltransferase , encoded by gene ubia in e . coli and lacks specificity to the aggregation length of its substrate ( polyisoprenyl pyrophosphate ) . if gene ubia can be introduced into psb and is high expression in psb , a recombinant strain producing coq10 could be obtained . consequently , the productive cost will decrease sharply
业已证实coq _ ( 10 )生物合成的关键酶为对羟基苯甲酸聚异戊二烯焦磷酸转移酶(在大肠杆菌中该酶由ubia基因编码) ，该类酶对底物聚异戊二烯焦磷酸( ppp )的聚合长度并无特殊要求。 |
