L-抗坏血酸钠的功效和作用是什么？

Sodium ascorbate is one of a number of mineral salts of ascorbic acid (vitamin C). The molecular formula of this chemical compound is C6H7NaO6. As the sodium salt of ascorbic acid, it is known as a mineral ascorbate. It has not been demonstrated to be more bioavailable than any other form of vitamin C supplement.Sodium ascorbate normally provides 131mg of sodium per 1,000mg of ascorbic acid (1,000mg of sodium ascorbate contains 889mg of ascorbic acid and 111mg of sodium).As a food additive, it has the E number E301 and is used as an antioxidant and an acidity regulator. It is approved for use as a food additive in the EU, USA, and Australia and New Zealand.In in vitro studies, sodium ascorbate has been found to produce cytotoxic effects in various malignant cell lines, which include melanoma cells that are particularly susceptible.L-抗坏血酸钠在具有以下功能的保健食品中使用过该原料（注：不代表该原料本身具有以下保健功能）,具有如下功能:
增强免疫力,缓解体力疲劳,祛黄褐斑,抗氧化,改善皮肤水份,改善营养性贫血,增加骨密度,对化学性肝损伤有辅助保护功能,通便,缓解视疲劳,辅助降血脂,减肥,促进排铅,对辐射危害有辅助保护功能,提高缺氧耐受力,辅助改善记忆,调节肠道菌群,改善生长发育,改善睡眠,辅助降血糖,清咽,祛痤疮,促进消化,对胃粘膜有辅助保护功能,其中在谷比利R水德胶囊,宝健牌多种维生素矿物质片,莱檬家牌多种维生素咀嚼片,中就有使用过该原料.
说明：以上对于原料功效的说明仅来源于其在对应保健食品中的运用，不代表该原料本身具有以下保健功能。