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perennials金蟲 (正式寫手)
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[求助]
殼聚糖涂覆 已有2人參與
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殼聚糖用于涂覆海藻酸鈣微球。 變換了殼聚糖的pH,但是涂覆后的濕球進(jìn)入模擬胃液都會(huì)發(fā)生溶脹,粒徑、質(zhì)量均變大。 但文獻(xiàn)中有報(bào)道粒徑降低,不知是否有人做過類似的研究,是否得到粒徑降低的結(jié)果?需要從哪方面改進(jìn)呢? 謝謝! |
殼聚糖A-Z |
金蟲 (正式寫手)
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文獻(xiàn)中殼聚糖72度30s,直接放入冰種冷卻,就可以用于涂覆了,這樣就達(dá)到滅菌的目的了嗎?真的可以嗎?原文如下: The chitosan solution was prepared by dissolving 4 g of chitosan in 950 mL of 0.1 M acetic acid; the pH was adjusted to 6.0 with 1 M NaOH. The mixture was adjusted to 1 L by distilled water and filtered through a Whatman #4 filter paper. The suspension was then heated at 72 ◦C for 30 s on a hot plate and immediately put on ice to cool down; it was subsequently used for coating. |
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