International Centre for Brewing and Distilling, Heriot-Watt University, Riccarton Campus, EH14 4AS, Edinburgh, UK.
World J Microbiol Biotechnol. 1991 Jan;7(1):17-21. doi: 10.1007/BF02310913.
Evidence derived from scanning electron microscope studies of the cell walls of germinated (malted) and unmalted sorghum grains suggests that portals (holes) develop in the endosperm cell walls during mobilization of the food reserves. It is proposed that amylolytic and proteolytic enzymes enter the endosperm cells through these portals and hyrolyse starch granules and associated storage proteins. Limited protease, pentosanase and/orβ-glucanase activities during malting may be responsible for the development of these portals in the endosperm cell walls. The latter persist in the malted grain.
扫描电子显微镜研究发芽（麦芽化）和未发芽高粱谷物细胞壁的结果表明，在粮食储备动员过程中，在内胚乳细胞壁中形成了门户（孔）。有人提出，淀粉酶和蛋白酶通过这些门户进入内胚乳细胞，水解淀粉颗粒和相关的贮藏蛋白。麦芽化过程中有限的蛋白酶、戊聚糖酶和/或β-葡聚糖酶活性可能导致内胚乳细胞壁中这些门户的形成。这些门户在后熟的谷物中仍然存在。
