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. 2021 Sep 23;26(19):5752. doi: 10.3390/molecules26195752

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Biplots obtained from honey samples (pure and adulterated). First, two principal components represented by biplots of the PCA applied on (A) standardized data, (B) standardized and log-transformated data, (C) closed and standardized data, and (D) centred log-ratio coordinates. Abbreviations of various type of honey: AC: Acacia, CA: Chaste, JU: Jujube, LD: Linden, SS: T. cochinchinensis, RP: Rape; and various types of sugar syrups: Sy; and adulterated honey categories: AAC (adulterated Acacia), ACA (adulterated Chaste), AJU (adulterated Jujube), ALD (adulterated Linden), ARP (adulterated Rape), ASS (adulterated T. cochinchinensis).