Crossref Unixref XML: Remove space in abstractNotes

[northword]

Description

Sometimes, the summary may include space indentation, such as 10.1039/D5GC06007A, and the API returns the result as:

    <abstract abstract-type="toc">
        <p>The Ni-ZIF-8 nanocomposite spatially organizes a dual-enzyme conjugate, achieving highly enhanced activity and a channeling-like effect for efficient UDP-GlcNAc synthesis.</p>
    </abstract>
    <abstract>
        <p>
            Enzyme cascade reactions hold transformative potential for sugar nucleotide biosynthesis, aligning with green chemistry principles by minimizing solvent waste and purification steps. However, their potential is often compromised by low catalytic efficiency due to inefficient intermediate utilization and instability of individual enzymes. Capitalizing on the coordinatively unsaturated Ni
            <sup>2+</sup>
            sites and the hydrophilic nature of Ni-doped zeolitic imidazolate framework-8 (Ni-ZIF-8), we engineered a highly active nanocomposite by incorporating a hexahistidine-tagged dual-enzyme conjugate of
            <italic>N</italic>
            -acetylhexosamine 1-kinase (BlNahK) and
            <italic>N</italic>
            -acetylglucosamine 1-phosphate uridylyltransferase (PmGlmU) (His
            <sub>6</sub>
            -BlNahK–PmGlmU-His
            <sub>6</sub>
            ) for efficient synthesis of uridine diphosphate
            <italic>N</italic>
            -acetylglucosamine (UDP-GlcNAc)—a pivotal sugar nucleotide. The Ni-ZIF-8 scaffold acts as a sustainable nano-reactor, not only stabilizing the dual-enzyme conjugate conformation but also elevating local substrate concentrations (ATP, UTP, and GlcNAc)
            <italic>via</italic>
            synergistic electrostatic and van der Waals interactions, thereby enhancing reaction kinetics and resource efficiency. Using stimulated Raman scattering (SRS) microscopy, we directly visualized the spatial confinement and rapid consumption of the intermediate substrate GlcNAc-1-P on the nanocomposite surface, demonstrating an engineered substrate channeling-like effect, a common mechanism in native metabolon complexes that boosts cascade efficiency. The resulting nanocomposite exhibits a 4.4-fold higher activity than free enzymes and superior stability across varying temperatures and pH conditions, and retains approximately 60% of its initial activity after five reuse cycles. This work establishes a generalizable and robust strategy for constructing metal–organic framework (MOF)–enzyme complexes with broad applicability in high-value sugar nucleotide biosynthesis and other complex bioconversion processes requiring metabolic flux control.
        </p>
    </abstract>

Before this change

The previous translator converted it to:

This is ugly and hard to read.

And, these spaces will also look quite messy when exported to XML, see ref: northword/zotero-format-metadata#404, of course, this is an issue with "exporting" not with translators.

After this change

Looks better.

Additional Note

This item will return two abstract, one is the TOC abstract and the other is the main abstract. I think it would be better to save both, but we need a line break (even two) to distinguish them.

Since we use ZU.trimInternal to remove extra spaces, I had to set a delimiter <!-- mutil-part --> to mark the split between the two abstract.

[northword]

The CI error seems unrelated to this PR change.

Please ping me if any modifications are needed. Thank you.