An Eco-Friendly Proposal by Integrating Chromatographic Fingerprinting and Multivariate Control Chart in a Non-Target Analysis to Evaluate Grape Juices from Different Farming Practices

A potential eco-friendly method without organic solvents is presented by integrating a chromatographic fingerprint and multivariate control chart based on Q residuals to differentiate grape juices from different farming practices. The sample preparation was only water dilution, and the mobile phase was water acidified with sulfuric acid, which can be readily neutralized before its disposal. The proposed method is shown to be a simple way to distinguish between organic and non-organic grape juices in a non-target way, successfully evaluating an external validation data set, where organic and non-organic samples were correctly assigned. Through the chromatographic profile, it is possible to suggest that one of the species responsible for this distinction may be from the anthocyanins class.

IDENTIFICATION AND ANALYSIS OF ACTIVE CAROTENOID COMPOUNDS FROM ENTAWAK FRUIT (ARTOCARPUS ANISOPHYLLUS)

— Isolation and identification of active compounds from mentawak fruit (Artocarpus Anisophyllus) used a plant determination test to determine the plant content. Furthermore, the extraction process was carried out to obtain a crude extract of carotenoid pigments by maceration method using n-hexane as solvent. Furthermore, the obtained macerate was carried out by phytochemical tests to determine the content of the active compounds. The TLC test was carried out to confirm the presence of a positive group of compounds on phytochemical screening, and to determine the chromatographic profile of the extract. The identification results showed that the phytochemicals showed that the active compounds contained in macerate were alkaloids, flavonoids, tannins and saponins. The KLT test results obtained an Rf value of 0.875. While the total carotenoid content using a spectrophotometer UV-Vis is 958 µg/ml.

Development of methods of identification and quantitative determination of active substances in semi-solid dosage forms with sapropel extracts

For use in veterinary medicine for the treatment of the wound process and the prevention of mastitis, the composition and technology of an emulsion-based cream, conventionally called “Saprocream”, has been developed. Clinical trial of the drug “Saprocream” proved its effectiveness and safety for use in the healing of microtraumas, erosions and cracks (wounds) of the udders of cows. The aim of the research were was the standardization of the cream under the conventional name “Saprocream” for use in veterinary medicine as a wound healing agent, the development of methods of identification and quantification and their validation. Materials and methods. Test samples of emulsion cream type o / v, containing 15 % aqueous extract of sapropel (VES), 10 % oil extract of sapropel (OES), 6 % emulsifier No. 1, 1 % cetylstearyl alcohol, preservatives – 0.01 % nisin, 0.1 % euxil K 100 and purified water up to 100 g were made by phase inversion. The methods of pharmacopoeial articles of the European Pharmacopoeia of the 10th edition, SPhU 1.0, as well as industry standards were used to develop methods for identification and quantification of active pharmaceutical ingredients (API) in the developed cream and its standardization. Results. The chromatographic profile of the acetone extract from the cream coincides with the chromatographic profile of the reference solution ((PRS) β-carotene), which indicates the presence of substances of carotenoid structure. The absorption spectrum of hexane extraction from the cream in the range from 500 nm to 750 nm has a maximum absorption at a wavelength of 670±2 nm, which coincides with the maximum absorption of hexane solution OES, indicating the presence of chlorophyll. A method for quantifying the total mass fraction of humic acids (HA) has been developed and it has been established that the total mass fraction of HA in cream samples with sapropel extracts is 0.828 %. The results of the validation of the method show that there is a linear relationship between the concentration of the total mass fraction of HA and the mass of the AES sample with a correlation coefficient of 0.9981 (³ 0.9981). The developed technique is precise, because the value of the relative confidence interval is less than the critical value for the convergence of the results: D %=1.34≤1.60 and the criterion of insignificance of systematic error d=0.51 is fulfilled. Conclusions. An emulsion-based cream under the conventional name “Saprocream” has been standardized, methods for identification and quantification of active substances have been developed and validation of the developed methods for use in veterinary medicine as a wound-healing and anti-inflammatory agent has been carried out.

Analisis Sidik Jari Kromatografi Lapis Tipis Tanaman Anting-Anting (Acalypha indica L.)

Anting-anting plant (Acalypha indica L.) is a plant that the community has used as raw material for herbal medicine. Anting-anting plants contain chemical compounds, so it is difficult to ensure these plants' safety and quality control. The research objective was to validate the method by knowing the stability, specificity, precision, and rigidity of the chromatographic profile of alkaloid compounds in the TLC analysis of the anting-anting extract. Extraction was carried out using ethyl acetate solvent for 20 minutes with a frequency of 42 kHz. The eluent used is cyclohexane: toluene: diethylamine (75:15:10) with Dragendorff reagent. The method of validation was acceptable according to the criteria except for the stability test of the analyte during chromatography. The instability of the analyte is indicated that not all spots form a straight diagonal line. The specificity of the method was carried out by comparing the fingerprint patterns of the leaves of the anting-anting with ekor kucing (Acalypha hibsida Farm.) and teh-tehan plants (Acalypha siamensis). The fingerprint profile showed a yellow stain (Rf = 0.39) on the leaves of the anting-anting, which did not appear in the fingerprint profiles of the two comparison samples. Keywords: anting-anting, fingerprint analysis, thin layer chromatography, method validation Anting-anting (Acalypha indica L.) merupakan tanaman yang telah dimanfaatkan masyarakat sebagai bahan baku obat herbal. Anting-anting mengandung banyak senyawa kimia sehingga sulit menjamin keamanan dan pengendalian mutu dari tanaman tersebut. Penelitian ini dilakukan untuk validasi metode dengan mengetahui kestabilan, spesifitas, presisi, dan ketegaran profil kromatografi senyawa alkaloid pada analisis KLT ekstrak anting-anting. Ekstraksi dilakukan menggunakan pelarut etil asetat selama 20 menit dengan frekuensi 42 kHz. Eluen yang digunakan adalah sikloheksana : toluena : dietilamin (75:15:10) dengan reagen Dragendorff. Validasi metode dapat diterima sesuai kriteria kecuali uji stabilitas analit selama kromatografi. Ketidakstabilan analit ditunjukkan dengan seluruh noda yang dihasilkan tidak membentuk garis diagonal yang lurus. Spesifitas pada metode dilakukan dengan membandingkan pola sidik jari daun anting-anting dengan daun ekor kucing (Acalypha hibsida Farm) dan daun teh-tehan (Acalypha siamensis). Profil sidik jari menunjukkan bahwa terdapat noda berwarna kuning kehijauan (Rf = 0,39) pada daun anting-anting yang tidak muncul pada profil sidik jari kedua sampel pembanding tersebut. Kata kunci: anting-anting, analisis sidik jari, kromatografi lapis tipis, validasi metode

Quality Control of Herbal Medicines: From Traditional Techniques to State-of-the-art Approaches

Herbal medicines are important options for the treatment of several illnesses. Although their therapeutic applicability has been demonstrated throughout history, several concerns about their safety and efficacy are raised regularly. Quality control of articles of botanical origin, including plant materials, plant extracts, and herbal medicines, remains a challenge. Traditionally, qualitative (e.g., identification and chromatographic profile) and quantitative (e.g., content analyses) markers are applied for this purpose. The compound-oriented approach may stand alone in some cases (e.g., atropine in Atropa belladonna). However, for most plant materials, plant extracts, and herbal medicines, it is not possible to assure quality based only on the content or presence/absence of one (sometimes randomly selected) compound. In this sense, pattern-oriented approaches have been extensively studied, introducing the use of multivariate data analysis on chromatographic/spectroscopic fingerprints. The use of genetic methods for plant material/plant extract authentication has also been proposed. In this study, traditional approaches are reviewed, although the focus is on the applicability of fingerprints for quality control, highlighting the most used approaches, as well as demonstrating their usefulness. The literature review shows that a pattern-oriented approach may be successfully applied to the quality assessment of articles of botanical origin, while also providing directions for a compound-oriented approach and a rational marker selection. These observations indicate that it may be worth considering to include fingerprints and their data analysis in the regulatory framework for herbal medicines concerning quality control since this is the foundation of the holistic view that these complex products demand.

Biological properties and phytochemical characterization from Miconia chamissois Naudin aqueous extract

The objective of this study was to evaluate biological and phytochemical properties of the aqueous extract from the leaves of Miconia chamissois Naudin (AEMC). Phytochemical properties were assessed by analyzing the chromatographic profile and the polyphenol content of AEMC. Biological properties evaluation was conducted based on cytotoxicity assay and by evaluating the antioxidant, antimicrobial, and enzymatic inhibition activities. Results indicated the presence of phytochemicals in AEMC such as flavonoids and polyphenols, including rutin, isoquercitrin and vitexin derivatives. AEMC showed antioxidant activity, which may be attributed to the high polyphenolic content. Moreover, AEMC demonstrated in vitro enzyme inhibition activity against tyrosinase and alpha-amylase, as well as showed low cytotoxicity. On the other hand, AEMC exhibited weak antimicrobial activity against S. aureus and C. albicans. Thus, AEMC is a promising alternative in search of potential drugs for the treatment of diseases induced by oxidative stress and inflammation, conditions due to hyperpigmentation processes, such as melisma, as well as for diabetes.

Antimicrobial activity of flavonoids glycosides and pyrrolizidine alkaloids from propolis of Scaptotrigona aff. postica.

Stingless bees belonging to the Meliponinae subfamily, are known as meliponines. Scaptotrigona affinis postica Latreille, 1807 from northeast of Brazil is popularly known as tubi in Maranhao State. Scaptotrigona, which is widely distributed in neotropical regions, includes species that build their hives in pre-existing cavities. Flavones di-C-glycosides, and the pyrrolizidine alkaloid 7-(3-methoxy-2-methylbutyryl)-9-echimidinylretronecine were reported previously in propolis from S. postica. Fractions 40 AEP and 40 MEP from ethanolic extract were analyzed by LC-MS. The chromatographic profile of fractions 40 AEP and 40 MEP revealed the presence of many pyrrolizidine alkaloids, among them, lithosenine (14), lithosenine arabinoside (19), 7-angeloyl-9-(2,3-dihydroxybutyryl) retronecine (1), 7-(2-methylbutyryl) retronecine (3), 9-sarracinoylretronecine (13) and viridinatine (8), besides the flavonoids schaftoside (15), aromadendrin-7-O-methyl ether (12), 7-methoxy-5,6,3,4,5,6-hexahydroxy-flavone-3-O-glucuronide (11), mangiferin (10) and 3-O-methyl mangiferin (17). Fractions 40 AEP and 40 MEP showed antimicrobial activity against Gram positive bacteria, including Escherichia coli D31- streptomycin resistant. Cell viability was expressed in terms of the relative absorbance of treated and untreated cells (control). There was no statistical difference between treated and untreated cells.

SKRINING FITOKIMIA DAN ANALISIS KROMATOGRAFI LAPIS TIPIS EKSTRAK KULIT PISANG KEPOK

Kepok banana peel is an organic waste that has potential to be reused. Several studies proofed that banana peels have antioxidant activity, antimicrobial, inhibit the formation of cholesterol crystals and gallstones, diuretic effect, and mutagenic effect. This study aims to identify secondary metabolites contained in kepok banana peels using qualitative test methods (phytochemical screening) and thin layer chromatography analysis. The results of the phytochemical screening of kepok banana peel indicated the presence of alkaloids, monoterpenes/sesquiterpenes, phenols/tannins, saponins,and quinones. Thin layer chromatographic profile of ethanol extract showed the presence of flavonoid, phenol, and quinone compounds.Keywords: Phytochemical, chromatography, banana peel

Field-Grown and In Vitro Propagated Round-Leaved Sundew (Drosera rotundifolia L.) Show Differences in Metabolic Profiles and Biological Activities

Drosera rotundifolia L. is a carnivorous plant used in traditional medicine for its therapeutic properties. Because of its small size, its collection in nature is laborious and different cultivation methods have been studied to ensure availability. However, only a few studies exist where the lab-grown sundew tissue and field-grown sundew would have been compared in their functionality or metabolic profiles. In this study, the antioxidant and antiviral activities of lab-grown and field-grown sundew extracts and their metabolic profiles are examined. The effect of drying methods on the chromatographic profile of the extracts is also shown. Antioxidant activity was significantly higher (5–6 times) in field-grown sundew but antiviral activity against enterovirus strains coxsackievirus A9 and B3 was similar in higher extract concentrations (cell viability ca. 90%). Metabolic profiles showed that the majority of the identified compounds were the same but field-grown sundew contained higher numbers and amounts of secondary metabolites. Freeze-drying, herbal dryer, and oven or room temperature drying of the extract significantly decreased the metabolite content from −72% up to −100%. Freezing was the best option to preserve the metabolic composition of the sundew extract. In conclusion, when accurately handled, the lab-grown sundew possesses promising antiviral properties, but the secondary metabolite content needs to be higher for it to be considered as a good alternative for the field-grown sundew.