Y.S. Lewis’s research while affiliated with Central Food Technological Research Institute and other places

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Publications (10)


Chemical constituents of kokum fruit rind
  • Article

January 1982

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23 Reads

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65 Citations

Journal of Food Science and Technology -Mysore-

N. Krishnamurthy

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Y.S. Lewis

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On the structures of garcinol, isogarcinol and camboginol

December 1981

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144 Reads

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113 Citations

Tetrahedron Letters

A new polyisoprenylated phenolic pigment, garcinol, and its colourless isomer, isogarcinol, have been isolated from and their structures proposed on the basis of chemical and spectral data. A modification is suggested for the recently proposed structure of camboginol.


Processing and utilization of plantation crops in India.
  • Article
  • Full-text available

January 1980

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38 Reads

Journal of Food Science and Technology -Mysore-

Y.S Lewis

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R. Seshadri

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S. Nagalaxmi

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[...]

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E.S. Nambudiri
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Citations (8)


... Earlier work on an integrated process for the recovery of essential oil, oleoresin and starch obtained from ginger spent showed that the latter compared favourably with other starches [15]. The spent or dried ginger meal (after the recovery of oleoresin) containing starch could possibly be incorporated into animal feed compositions [16]. Starches were isolated from yam, coco yam, cassava, sweet potato and ginger produced in the Ivory Coast [10]. ...

Reference:

Physico‐chemical and functional properties of starch isolated from ginger spent
Oleoresin ginger
  • Citing Article
  • January 1972

... The pungent principle of ginger is zingerone (C 11 H 14 O 3 ) which is present in the oleoresin. The essential oil contains approximately -pinene 0.4%, camphene 1.1%, ß-pinene 0.2%, myrcene 0.1%, limonene 1.2%, 1,8-cineole 1.3%, ß-phellandrene 1.3%, p-cymene 0.1%, methyl heptanone 0.1%, nonanal 0.1%, decanal 0.2%, neral 0.8%, geraniol 1.4%, 2-nonanol 0.2%, linalool 1.3%, bornyl acetate 0.1%, d-borneol 2.2%, geraniol 0.1%, -selinene 1.4%, ß-elemene 1.0%, ß-zingiberene 35.6%, ß-bisabolene 0.2%, arcurcume 17.0% and ß-farnesene 9.8% (Krishnamurthy et al, 1970;Kami et al, 1972;Akhila and Tewari, 1984). ...

Reference:

Aromatic plants
Essential oil of ginger
  • Citing Article
  • January 1970

... The spice was dried in an oven at 55 ± 2°C for 1 h. This dried material was powdered to pass through a 20 British standard sieve (BSS) mesh size of and subjected to steam distillation (Nambudiri, Lewis, Rajagopalan, & Natarajan, 1968). Celery seeds (200 g), without enzyme pretreatment, were powdered and subjected to steam distillation (control sample). ...

Production of cardamom oil by distillation
  • Citing Article
  • January 1968

Research and Industry

... Even though noni has many beneficial properties but consumption limits its acrid taste and smell. Similarly, Kokum, indigenous to the Western Ghats of India, offers medicinal uses ranging from treating digestive disorders to possessing anticancer properties due to its rich content of anthocyanins, hydroxycitric acid, and garcinol (Krishnamurthy et al., 1982;Ranveer and Sahoo, 2017). ...

Chemical constituents of kokum fruit rind
  • Citing Article
  • January 1982

Journal of Food Science and Technology -Mysore-

... Turmeric contains total carotenoids of approximately 2.8 -6.0 mg/g (Sontsa--Donhoung et al., 2022). The primary pigment of turmeric is lutein (Krishnamurthy et al., 1976;Safitri et al., 2020), which is responsible for the yellowish-orange color and accounts for 90% of total carotenoid in the integument of goldfish (Hata and Hata, 1970). A recent study also showed that the administration of 50 mg/kg of lutein demonstrated the ability to enhance survival and stimulate carotenoid pigmentation in the skin of goldfish after fed for 84 days (Besen et al., 2019). ...

Oil and oleoresin of turmeric
  • Citing Article
  • January 1976

Tropical Science

... Results of specific energy of grinding of some food and biomass materials are presented in Table 4. Grinding into very fine powders has positive effects on oil extraction by enhancing the development of new surface area, increasing the bulk density and porosity as well as assisting the flow properties of flours (Bolaji et al., 2017). Grinding also enhanced oil extraction from spices by making available oil in their oil matrix (Lewis et al., 1969;Pruthi, 1980). In addition, the measurement of the performance of a grinder has been shown to be functions of energy consumption and particle size distribution (Rozalli et al., 2015). ...

Composition of pepper oil
  • Citing Article
  • January 1969

... In the earlier studies cardamom capsules grown under the open condition showed higher levels of alpha terpinyl acetate than the crop grown under 75% shaded condition [3]. In their study, the range of air temperature close to panicle region was 18.6-32.5 and 15. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].8°C under open and 75% shaded conditions, correspondingly. ...

Composition of cardamom oils
  • Citing Article
  • January 1966

... The major chemical constituents isolated from different parts of the plant includes, the organic acids such as 1a, the lactone 1, benzophenones and polyisoprenylated benzophenones, such as garcinol (2), isogarcinol (3), and guttiferones (4-6), [7,8,10,11], as well as xanthone-type compounds like garbogiol (7), rheediaxanthone A (8), oxy-guttiferone I (9), oxy-guttiferone K (10), oxy-guttiferone M (11), and oxy-guttiferone K2 (12) [12][13][14]. The major compounds, 1 to 12, isolated from different parts of the plant are presented in Table 1. ...

On the structures of garcinol, isogarcinol and camboginol
  • Citing Article
  • December 1981

Tetrahedron Letters