Patcharee Pripdeevech

Mae Fah Luang University | MFU · School of Science

Zanthoxylum limonella essential oil possesses potential antimicrobial activity and is of considerable interest as food flavouring and traditional herb. In this study, an enzymolysis-pretreatment-microwave-assisted extraction (EP-MAE) method was used to extract Z. limonella essential oil. The response surface methodology (RSM) with Plackett–Burman d...

Lasiodiplodia fungi are known to colonize plants as both pathogens and/or endophytes; hence, they can be exploited for their beneficial roles. Many compound classes from the genus have exhibited their potential biotechnological applications. Herein, we report two new metabolites 1 and 2 together with three known cyclo-(D-Ala-D-Trp) (3), indole-3-ca...

Biodegradable material incorporated with antifungal essential oil has become an alternative food preservation approach to reduce plastic waste. Essential oils of Amomum testaceum, Anethum graveolens, Piper longum, Kaempferia galanga, and Zanthoxylum limonella were tested for their antifungal activity against Aspergillus niger. A. graveolens essenti...

The antibacterial activity of Amomum verum Blackw, Zanthoxylum limonella (Dennst.) Alston, Zanthoxylum bungeanum, and Zingiber montanum (J. Koenig) Link ex A. Dietr essential oils were investigated against Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, and Pseudomonas aeruginosa. The essential oils of A. verum Blackw, Z. limon...

Low-density polyethylene (LDPE) has been commercially used and accumulated as plastic solid waste. LDPE has also been found to be a non-degradable waste for decades and found as a pollution source in the environment. In this study, 65 fungi were screened for their biodegradation of LDPE. The fungi Neopestalotiopsis phangngaensis, Alternaria burnsii...

Polyester urethanes (PUR) are widely used in industries and have led to a worldwide plastic waste problem. Thus, novel solutions for PUR degradation are required to reduce environmental pollution. This work investigates the PUR biodegradation efficiency of 33 fungal species using a polyester-polyurethane colloid branded Impranil DLN (Impranil) comp...

The essential oil of Elsholtzia beddomei C. B. Clarke ex Hook. f. was investigated for its chemical composition and tested for antioxidant and antimicrobial activities. The E. beddomei essential oil was extracted using hydrodistillation for 4 h (yield of 1.38% w/w). Forty-three volatile compounds were identified in the E. beddomei essential oil, in...

This work explored the compositions of a crude extract of peels of Citrus x aurantium using a gas chromatography-mass spectrometry (GC-MS) technique. The crude extract of peels of C. × aurantium was analyzed by GC-MS revealing the presence of limonene as the major compound, accounting for 93.7% of the total. Virucidal activity of the oil of C. x au...

Coccinia grandis or ivy gourd is an edible plant. Its leaves and fruits are used as vegetable in many countries. Many works on antidiabetic activity of a crude extract of C. grandis, i.e., in vitro, in vivo, and clinical trials studies, have been reported. Profiles of the antidiabetic compounds were previously proposed by using LC-MS or GC-MS. Howe...

The essential oil was extracted from Peucedanum dhana A. Ham, which grows in Thailand, using a Clevenger apparatus, resulting in an oil yield of 0.76% w/w. Forty-two compounds were identified using gas chromatography-mass spectrometry. The major compounds were trans-piperitol (51.23%), β-pinene (11.72%), o-cymene (11.12%), γ-terpinene (9.21%), and...

Accumulated plastic waste in the environment is a serious problem that poses an ecological threat. Plastic waste has been reduced by initiating and applying different alternative methods from several perspectives, including fungal treatment. Biodegradation of 30 fungi from Thailand were screened in mineral salt medium agar containing low-density po...

Fungal endophytes are microorganisms living symbiotically with a host plant. They can produce volatile organic compounds (VOCs) that have antimicrobial activity. This study aimed to isolate endophytic fungi from Barleria prionitis plants grown in Thailand and to investigate the antifungal properties of their VOCs against Colletotrichum acutatum , a...

BACKGROUND Two Fusarium fungi, F. oxysporum and F. proliferatum, have been recognized as major pathogenic fungi that cause post‐harvest decay of chili fruits. Ozone and some toxic chemicals are used to control pathogenic infections, leading to longer storage lives of agricultural commodities. However, these chemicals may pose some risks to the appl...

Tea is considered as the most consumed drink in the world containing high antioxidant capacity. In this study, the volatile compounds, the phenolic content, catechins and caffeine including antioxidant activities of 22 Camellia sinensis var. assamica (Assam tea) cultivars were investigated. The volatile compounds were investigated by GC-MS. At leas...

The essential oil of Peucedanum dhana A. Ham growing in Thailand was investigated for their volatile compounds and screened for its antimicrobial, antioxidant, and cytotoxic activities. Forty-two compounds were identified, with the most important compounds being trans-piperitol, o-cymene, β-pinene, γ-terpinene, and limonene. Essential oil of P. dha...

Bunch rot in grapes is an aggressive disease and needs to be controlled during the postharvest period. We investigate the antifungal potential of Zanthoxylum bungeanum Maxim., Zanthoxylum rhetsa , Cuminum cyminum , Coriandrum sativum , and Zingiber montanum (J. Koenig) Link ex A. Dietr. essential oils against Aspergillus aculeatus that cause bunch...

Ventilago denticulata is an herbal medicine for the treatment of wound infection; therefore this plant may rich in antibacterial agents. UHPLC-ESI-QTOF-MS/MS-Based molecular networking guided isolation and dereplication led to the identification of antibacterial and antifungal agents in V. denticulata. Nine antimicrobial agents in V. denticulata we...

Ventilago denticulata is an herbal medicine for the treatment of wound infection; therefore this plant may rich in antibacterial agents. UHPLC-ESI-QTOF-MS/MS-Based molecular networking guided isolation and dereplication led to the identification of antibacterial and antifungal agents in V. denticulata. Nine antimicrobial agents in V. denticulata we...

Teaghrelins were identified as unique acylated flavonoid tetraglycosides and firstly reported in Chin-shin oolong tea. In the present study, two new teaghrelin-like compounds (1 and 2) were purified and characterised from Assam tea varieties collected in Thailand. Their chemical structures were constructed by the spectroscopic and spectrometric ana...

Thirty-four endophytic fungal isolates were obtained from the leaves of the medicinal plant Polyscias fruticosa , and their antagonistic activities against the growth of the common tomatoes plant pathogenic fungus Athelia rolfsii were initially screened using a dual culture assay. The endophytic fungus MFLUCC 17-0313, which was later molecularly id...

The essential oils of five Lavandula stoechas cultivars grown in Thailand were characterized for their volatile compounds using GC‐FID and GC‐MS methods as well as screened for antibacterial and antioxidant activities. Dried aerial parts, including flowers and stems from each cultivar, were subjected to hydrodistillation for 4 h. The essential oil...

Endophytic fungi, which colonize within a host plant without causing any apparent diseases, have been considered as an important source of bioactive secondary metabolites containing antimicrobial and antioxidant activities. The aim of this research was to isolate the endophytic fungi of Cinnamomum loureiroi and then to screen their antimicrobial an...

Mitrephora wangii, an ethnomedicinal plant, has been used as a natural antibiotic and immunity booster in Thailand. A total of 22 fungi were isolated from M. wangii flowers. The fungal isolates were categorized into six genera including Agrocybe, Aspergillus, Colletotrichum, Nigrospora, Puccinia and Ustilago. Most extracts exhibited antibacterial a...

Fifty-two strains of endophytic fungi were isolated from flowers of the medicinal plant Melodorum fruticosum. Seven genera were identified including Alternaria, Aspergillus, Colletotrichum, Diaporthe, Fusarium, Greeneria and Nigrospora. All strains were cultured for 30 days and further macerated in ethyl acetate solvent for 3 days. The obtained fun...

Incubation with microbial culture supernatants improved essential oil yield from Aquilaria subintegra woodchips. The harvested woodchips were incubated with de man, rogosa and sharpe (MRS) agar, yeast mold (YM) agar medium and six different microbial culture supernatants obtained from Lactobacillus bulgaricus, L. acidophilus, Streptococcus thermoph...

This work aimed to characterise and compare the volatile profiles of Oolong tea No. 12 obtained from eight provenances in Chiang Rai province of northern Thailand. Thirty-two samples were analysed using solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS). Sixty-seven volatile constituents were identified with their relativ...

Fourteen fungal endophytes were isolated from the Ocimum basilicum var. thyrsiflora leaves collected from Northern Thailand. Eight genera were identified including Aspergillus, Ascochyta, Nigrospora, Blastomyces, Colletotrichum, Exidia, Clitopilus, and Nomuraea. The antibacterial activity of crude extracts from all endophytic fungi was tested again...

Essential oil of Litsea petiolata (Hook f) was extracted from their leaves collecting from Chiang Rai province, Northern Thailand. Hydrodistillation technique with Clevenger system was performed to extract L. petiolata essential oil. The essential oil composition was further analyzed by gas chromatographic-mass spectrometric technique. A total of 7...

Fungal endophytes are microorganisms that are well-known for producing a diverse array of secondary metabolites. Recent studies have uncovered the bioprospecting potential of several plant endophytic fungi. Here, we demonstrate the presence of highly bioactive fungal endophytic species in Aquilaria subintegra, a fragrant wood plant collected from T...

The volatile constituents of Cinnamomum bejolghota bark essential oil were investigated by using gas chromatography-mass spectrometry (GC-MS). Thirty-six volatile constituents were identified with the major components being 1,8-cineole, γ-terpineol, borneol and terpinen-4-ol. Essential oil of C. bejolghota bark was firstly screened for their antiba...

The essential oil of Goniothalamus marcanii flowers extracted by hydrodistillation was investigated in terms of its chemical composition by gas chromatography-mass spectrometry with their retention indices. The analyses revealed the presence of 116 compounds, representing 93.83% of the essential oil. The major compounds of the oil were caryophyllen...

A total of 17 endophytic fungal isolates were obtained from the leaves of Mentha cordifolia Opiz (Lamiaceae). Seven isolates were identified to the level of genus by using taxonomically relevant morphological traits. Colletotrichum and Phomopsis species were dominant among these strains. All strains were separated from M. cordifolia leaf for the fi...

The present work reports the chemical compositions, antibacterial and antioxidant activities of essential oils from T. jasminoides flowers collected from two different geographical areas, Chiang Rai and Chiang Mai, Thailand. The essential oil of T. jasminoides from the Chiang Rai area had 99 compounds representing 97.9% of the total oil composition...

The volatile components of Murraya koenigii fresh leaves, collected from Surat Thani province, Thailand were studied by using headspace (HS) solid-phase microextraction (SPME) coupled with gas chromatography-mass spectrometry (GC-MS). The four fibers employed to extract the volatiles were polydimethylsiloxane (PDMS), polydimethylsiloxane-divinylben...

The volatile components of Green Oolong tea No. 12 fermented with culture supernatants of five Bacillus subtilis strains were investigated. Initially, the culture supernatants of five different strains of B. subtilis were prepared and subsequently used as crude enzymes to ferment tea samples. After 2 h-fermentation, the volatile components were ext...

Odor volatile compounds of fresh Citharexylum spinosum flowers were extracted by using solid phase microextraction prior analysis by gas chromatography-mass spectrometry. Three fibers including PDMS, CAR/PDMS and DVB/CAR/PDMS were chosen for extraction of C. spinosum odor constituents. Fifty-two odor volatile components were investigated. Twenty-tw...

The fingerprints and individual volatile flavor components of teas grown in different areas of the world are discussed, along with classical to modern analytical methods applied to teas. The structures of most volatiles were investigated by gas chromatography-mass spectrometry. The odor and flavor volatiles of various teas are controlled by specifi...

The constituents of essential oil and various extracts of Fagraea fragrans flowers were investigated by gas chromatography-mass spectrometry with 118 identified volatile constituents. Three-octadecyne, catalponone and elemicin dominated in the essential oil of the flowers. The dichloromethane extract of the flowers contained β-bisabolenol, occidol...

Fresh Thai kaffir lime leaves were subjected to extraction by supercritical carbon dioxide yielding yellow clear oils which were then analyzed by gas chromatographic-mass spectrometric technique (GC-MS). The conditions of supercritical fluid extraction (SFE); pressure, temperature, extraction time, and type and percentage of modifier which gave the...

This chapter begins by discussing the vernacular names and different varieties of tarragon (also known as Artemisia dracunculus L). The cultivation, production and processing of tarragon are then introduced. Recent research into the chemical composition of the essential oils of tarragon is discussed, and, in particular, the presence of various terp...

a b s t r a c t Kaempferia parviflora rhizome extracts obtained by maceration with hexane, chloroform, methanol, and ethanol were screened for their adaptogenic activities using swimming tests of mice. The effective adap-togenic extract dose was 500 mg/kg of body weight and was given orally once a day. Crude hexane extract showed significantly shor...

Volatile components from the essential oils of Aquilaria malaccensis, A. subintegra and A. crassna were investigated by gas chromatography (GC), gas chromatography-mass spectrometry (GC/MS), and gas chromatography-olfactometry (GC-O). A total of 31 volatile constituents were identified from the three agarwood oils. A subset of 18 out of the 31 comp...

The volatile flavour components of different teas growing in Thailand were extracted using the simultaneous distillation and extraction (SDE) technique. These volatiles were investigated by GC–MS. At least 54 components representing 76.51–83.32% of all samples were identified. Hotrienol, geraniol and linalool were found to be the major components i...

This research presents the chemical composition antifungal and antioxidant activities of essential oils and various extracts from Melodorum fruticosum flowers. The essential oil composition of M. fruticosum flowers were investigated by GC-MS with 88 identified volatile constituents. Phenyl butanone, linalool, benzyl alcohol, alpha-cadinol, globulol...

The chemical compositions of essential oils obtained from Ocimum basilicum var. thyrsiflora (1.39 % dry weight) and Ocimum basilicum (0.61 %) were analyzed by GC–MS. Seventy-three constituents representing 99.64 % of the chromatographic peak area were obtained in the O. basilicum var. thyrsi-flora oil, whereas 80 constituents representing 91.11 % o...

Vetiver root oil is known as one of the finest fixatives used in perfumery. This highly complex oil contains more than 200 components, which are mainly sesquiterpene hydrocarbons and their oxygenated derivatives. Since conventional GC-MS has limitation in terms of separation efficiency, the comprehensive two-dimensional GC-MS (GC x GC-MS) was propo...

Roots of Vetiveria zizanioides Nash (Mae Hae; Thai ecotype) planted in three different cultivation systems (normal soil, normal soil with added microbes and semi- hydroponically) were extracted using a simultaneous steam distillation and solvent extraction (SDE) apparatus. Yields of the essential oils obtained were 0.27, 0.18 and 0.06%, respectivel...