Bio-processing of macroalgae Palmaria palmata: metabolite fractionation from pressed fresh material and ensiling considerations for long-term storage.
Bio-processing of macroalgae Palmaria palmata: metabolite fractionation from pressed fresh material and ensiling considerations for long-term storage.
复制标题
DOI：
10.1007/s10811-020-02295-x
复制
发表时间：
2021
影响因子：
3.3
通讯作者：
Theodorou MK
中科院分区：
文献类型：
--
作者：
Gallagher JA;Adams JMM;Turner LB;Kirby ME;Toop TA;Mirza MW;Theodorou MK
红藻属于红藻门，含有大量有用的化学物质，包括生物活性分子，并为通过生物精炼级联生产不同产品提供了机会。棕榈树通常被称为Dillisk或Dillisk，主要生长在大西洋和太平洋的北部海岸，是一种著名的休闲食品。由于其丰度、有效性和培养能力，棕榈藻被选为生物精炼工艺的潜在候选者。除了研究新鲜收获的棕榈藻的汁液和固体组分外，我们还研究了通过青贮方案保存藻类生物量的新可能性，该方案类似于陆地饲料作物所使用的方案。在螺杆挤压后代谢产物在固体和液体组分中的分配中，筛选出的大多数代谢物--水溶性碳水化合物、蛋白质和氨基酸、脂类、色素、酚类和抗氧化活性--仍留在固体组分中，但比例不同，从70.8%的可溶性氨基酸到98.2%的叶绿素a和98.1%的总类胡萝卜素。在青贮研究中，比较枯萎的和切碎的和仅切碎的样品，在添加和不添加Safesil青贮料添加剂的情况下，大规模青贮。所有样品均在90天后青贮成功，与其他制剂相比，螺杆压榨青贮前后的pH值较低或相等。特别值得注意的是青贮期间产生的污水体积：鲜重的26%-49%，含有青贮料干物质的16%-34%。这可能是有利的，取决于生物质的最终用途。
Red algae, belonging to the phylum Rhodophyta, contain an abundance of useful chemicals including bioactive molecules and present opportunities for the production of different products through biorefinery cascades. The rhodophyte Palmaria palmata, commonly termed dulse or dillisk, grows predominantly on the northern coasts of the Atlantic and Pacific Oceans and is a well-known snack food. Due to its abundance, availability and cultivation capacity, P. palmata was selected for study as a potential candidate for a biorefinery process. In addition to studying juice and solid fractions of freshly harvested P. palmata, we have investigated the novel possibility of preserving algal biomass by ensilaging protocols similar to those employed for terrestrial forage crops. In the metabolite partitioning within the solid and liquid fractions following screw-pressing, the majority of the metabolites screened for—water soluble carbohydrates, proteins and amino acids, lipids, pigments, phenolics and antioxidant activity—remained in the solid fraction, though at differing proportions depending on the metabolite, from 70.8% soluble amino acids to 98.2% chlorophyll a and 98.1% total carotenoids. For the ensiling study, screw-pressed P. palmata, with comparative wilted and chopped, and chopped only samples, were ensiled at scale with and without Safesil silage additive. All samples were successfully ensiled after 90 days, with screw-pressing giving lower or equal pH before and after ensiling compared with the other preparations. Of particular note was the effluent volumes generated during ensiling: 26–49% of the fresh weight, containing 16–34% of the silage dry matter. This may be of advantage depending on the final use of the biomass.
登录
查看更多内容
影响因子：
4.1
作者：
Black, W. A. P.
通讯作者：
Black, W. A. P.
影响因子：
3.3
作者：
LAHAYE, M;VIGOUROUX, J
通讯作者：
VIGOUROUX, J
影响因子：
8.1
作者：
Harnedy, Padraigin A.;Soler-Vila, Anna;FitzGerald, Richard J.
通讯作者：
FitzGerald, Richard J.
影响因子：
11.4
作者：
Dumay, Justine;Clement, Nathalie;Fleurence, Joel
通讯作者：
Fleurence, Joel
影响因子：
3.6
作者：
Farrar K;Bryant DN;Turner L;Gallagher JA;Thomas A;Farrell M;Humphreys MO;Donnison IS
通讯作者：
Donnison IS