Addressing the critical need for sustainable biofuel sources that do not compete with prime agricultural land, this work presents a promising evaluation of Salicornia species as novel biodiesel feedstocks cultivable in underutilized coastal hypersaline regions. The research leveraged a successful pilot plant application, demonstrating the practical large-scale cultivation of Salicornia as an energy feedstock in these environments. Through innovative integration of advanced analytical techniques and multivariate statistical approaches, S. bigelovii and S. sinus-persica were comprehensively analyzed for their biodiesel potential. S. bigelovii seeds exhibited superior oil content (20.6 wt%) compared to S. sinus-persica (11.6 wt%), with an exceptional oil yield potential of 11,442 kg/ha, surpassing established biodiesel feedstocks. Oil extraction experiments also showed that cleaned high-density S. bigelovii seeds yielded up to 36.0 % oil content. Fatty acid methyl ester (FAME) profiling and biodiesel properties confirmed that both species meet ASTM D6751 and EN 14214 standards. The multivariate analyses revealed interesting relationships between Salicornia oils and other feedstocks, providing valuable insights for future breeding programs. Furthermore, advanced imaging elucidated Salicornia seed microstructures and oil distribution. This research establishes a robust analytical framework for evaluating novel biodiesel sources with significant implications for sustainable energy production in marginal lands. The findings pave the way for developing high-yielding, salt-tolerant energy crops, enhancing biodiesel feedstock cultivation in salt-affected coastal areas worldwide. By tackling both energy security and land use challenges in a changing climate, the study marks a breakthrough in sustainable biodiesel research.

中文翻译：

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海蓬子籽油：一种高产且可持续的盐生植物原料，用于在未充分利用的高盐度沿海沙漠中生产生物柴油和能源


为了解决对不与主要农业用地竞争的可持续生物燃料来源的迫切需求，这项工作对海蓬子物种作为可在未充分利用的沿海高盐地区种植的新型生物柴油原料进行了有前景的评估。该研究利用成功的中试工厂应用，展示了海蓬子在这些环境中作为能源原料的实际大规模种植。通过先进分析技术和多元统计方法的创新整合，对 S. bigelovii 和 S. sinus-persica 的生物柴油潜力进行了全面分析。与桃子 (11.6 wt%) 相比，S. bigelovii 种子表现出更高的含油量 (20.6 wt%)，其产油潜力高达 11,442 千克/公顷，超过了现有的生物柴油原料。油提取实验还表明，清洁的高密度 S. bigelovii 种子的含油量高达 36.0%。脂肪酸甲酯 (FAME) 分析和生物柴油特性证实这两个品种均符合 ASTM D6751 和 EN 14214 标准。多变量分析揭示了海蓬子油和其他原料之间有趣的关系，为未来的育种计划提供了宝贵的见解。此外，先进的成像阐明了海蓬子种子的微观结构和油脂分布。这项研究建立了一个强大的分析框架，用于评估新型生物柴油来源，对边际土地的可持续能源生产具有重大影响。这些发现为开发高产、耐盐能源作物、加强全球受盐影响沿海地区的生物柴油原料种植铺平了道路。 通过应对气候变化中的能源安全和土地利用挑战，该研究标志着可持续生物柴油研究的突破。